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68888887625 = 533791454119
BaseRepresentation
bin100000000101000011…
…0010000000101001001
320120210222121002020102
41000022012100011021
52112041023401000
651351435535145
74656062611655
oct1001206200511
9216728532212
1068888887625
1127240a87988
12114268ba4b5
13665b1a59cc
143497223a65
151bd2cd23d5
hex100a190149

68888887625 has 16 divisors (see below), whose sum is σ = 86200233600. Its totient is φ = 54965660400.

The previous prime is 68888887597. The next prime is 68888887631. The reversal of 68888887625 is 52678888886.

It is not a de Polignac number, because 68888887625 - 216 = 68888822089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679685 + ... + 774434.

It is an arithmetic number, because the mean of its divisors is an integer number (5387514600).

Almost surely, 268888887625 is an apocalyptic number.

It is an amenable number.

68888887625 is a deficient number, since it is larger than the sum of its proper divisors (17311345975).

68888887625 is a wasteful number, since it uses less digits than its factorization.

68888887625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454513 (or 1454503 counting only the distinct ones).

The product of its digits is 660602880, while the sum is 74.

The spelling of 68888887625 in words is "sixty-eight billion, eight hundred eighty-eight million, eight hundred eighty-seven thousand, six hundred twenty-five".

Divisors: 1 5 25 125 379 1895 9475 47375 1454119 7270595 36352975 181764875 551111101 2755555505 13777777525 68888887625