79877697328 has 80 divisors (see below), whose sum is σ = 184800484512. Its totient is φ = 32965632000.

The previous prime is 79877697311. The next prime is 79877697331. The reversal of 79877697328 is 82379677897.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146593 + ... + 425728.

Almost surely, 2^79877697328 is an apocalyptic number.

It is an amenable number.

79877697328 is an abundant number, since it is smaller than the sum of its proper divisors (104922787184).

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

79877697328 is a wasteful number, since it uses less digits than its factorization.

79877697328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572414 (or 572408 counting only the distinct ones).

The product of its digits is 448084224, while the sum is 73.

The spelling of 79877697328 in words is "seventy-nine billion, eight hundred seventy-seven million, six hundred ninety-seven thousand, three hundred twenty-eight".