79887552768 has 54 divisors (see below), whose sum is σ = 230335515774. Its totient is φ = 26629183488.

The previous prime is 79887552763. The next prime is 79887552799. The reversal of 79887552768 is 86725578897.

79887552768 is a `hidden beast` number, since 7 + 9 + 8 + 8 + 7 + 552 + 7 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41890627584 + 37996925184 = 204672^2 + 194928^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 79887552696 and 79887552705.

It is not an unprimeable number, because it can be changed into a prime (79887552763) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17334405 + ... + 17339012.

Almost surely, 2^79887552768 is an apocalyptic number.

It is an amenable number.

79887552768 is an abundant number, since it is smaller than the sum of its proper divisors (150447963006).

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

79887552768 is a wasteful number, since it uses less digits than its factorization.

79887552768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34673439 (or 34673422 counting only the distinct ones).

The product of its digits is 474163200, while the sum is 72.

The spelling of 79887552768 in words is "seventy-nine billion, eight hundred eighty-seven million, five hundred fifty-two thousand, seven hundred sixty-eight".