79428060688 has 20 divisors (see below), whose sum is σ = 162944330940. Its totient is φ = 37377910784.

The previous prime is 79428060659. The next prime is 79428060709. The reversal of 79428060688 is 88606082497.

It can be written as a sum of positive squares in 2 ways, for example, as 71860452624 + 7567608064 = 268068^2 + 86992^2 .

It is a super-2 number, since 2×79428060688² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146007193 + ... + 146007736.

It is an arithmetic number, because the mean of its divisors is an integer number (8147216547).

Almost surely, 2^79428060688 is an apocalyptic number.

It is an amenable number.

79428060688 is an abundant number, since it is smaller than the sum of its proper divisors (83516270252).

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

79428060688 is a wasteful number, since it uses less digits than its factorization.

79428060688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292014954 (or 292014948 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 79428060688 in words is "seventy-nine billion, four hundred twenty-eight million, sixty thousand, six hundred eighty-eight".