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672996866232480 = 253531220132054617
BaseRepresentation
bin1001100100000101100100101…
…1001001011001000010100000
310021020212212112202001100002020
42121001121023021121002200
51201202340040223414410
610343202254152021440
7261520263504502656
oct23101311311310240
93236785482040066
10672996866232480
1118548a405aa5929
1263593374991880
1322b6a441a246ca
14bc29317722dd6
1552c12d623da70
hex264164b2590a0

672996866232480 has 192 divisors, whose sum is σ = 2188425769786368. Its totient is φ = 173668636385280.

The previous prime is 672996866232389. The next prime is 672996866232503. The reversal of 672996866232480 is 84232668699276.

It is a junction number, because it is equal to n+sod(n) for n = 672996866232396 and 672996866232405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326526132 + ... + 328580748.

It is an arithmetic number, because the mean of its divisors is an integer number (11398050884304).

Almost surely, 2672996866232480 is an apocalyptic number.

672996866232480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672996866232480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094212884893184).

672996866232480 is an abundant number, since it is smaller than the sum of its proper divisors (1515428903553888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672996866232480 is a wasteful number, since it uses less digits than its factorization.

672996866232480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076679 (or 2076671 counting only the distinct ones).

The product of its (nonzero) digits is 4514807808, while the sum is 78.

The spelling of 672996866232480 in words is "six hundred seventy-two trillion, nine hundred ninety-six billion, eight hundred sixty-six million, two hundred thirty-two thousand, four hundred eighty".