79669709814528 has 216 divisors, whose sum is σ = 231200561919600. Its totient is φ = 26384065044480.

The previous prime is 79669709814503. The next prime is 79669709814557. The reversal of 79669709814528 is 82541890796697.

79669709814528 is a `hidden beast` number, since 7 + 9 + 6 + 6 + 9 + 7 + 0 + 9 + 81 + 4 + 528 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1074417198 + ... + 1074491346.

It is an arithmetic number, because the mean of its divisors is an integer number (1070372971850).

Almost surely, 2^{79669709814528} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79669709814528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115600280959800).

79669709814528 is an abundant number, since it is smaller than the sum of its proper divisors (151530852105072).

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

79669709814528 is a wasteful number, since it uses less digits than its factorization.

79669709814528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77195 (or 77178 counting only the distinct ones).

The product of its (nonzero) digits is 3292047360, while the sum is 81.

The spelling of 79669709814528 in words is "seventy-nine trillion, six hundred sixty-nine billion, seven hundred nine million, eight hundred fourteen thousand, five hundred twenty-eight".