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79379460457 = 1153136156879
BaseRepresentation
bin100100111101101100…
…0100111000101101001
321120220002110101202221
41021323120213011221
52300032120213312
6100244425154041
75510045165263
oct1117330470551
9246802411687
1079379460457
11307346aa590
121347402b921
1376406c735b
143bb05a6b33
1520e8c95207
hex127b627169

79379460457 has 8 divisors (see below), whose sum is σ = 88229658240. Its totient is φ = 70801576560.

The previous prime is 79379460443. The next prime is 79379460469. The reversal of 79379460457 is 75406497397.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79379460457 - 223 = 79371071849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79379460395 and 79379460404.

It is not an unprimeable number, because it can be changed into a prime (79379460487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68077857 + ... + 68079022.

It is an arithmetic number, because the mean of its divisors is an integer number (11028707280).

Almost surely, 279379460457 is an apocalyptic number.

It is an amenable number.

79379460457 is a deficient number, since it is larger than the sum of its proper divisors (8850197783).

79379460457 is a wasteful number, since it uses less digits than its factorization.

79379460457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136156943.

The product of its (nonzero) digits is 40007520, while the sum is 61.

The spelling of 79379460457 in words is "seventy-nine billion, three hundred seventy-nine million, four hundred sixty thousand, four hundred fifty-seven".

Divisors: 1 11 53 583 136156879 1497725669 7216314587 79379460457