79945725552 has 80 divisors (see below), whose sum is σ = 257487543552. Its totient is φ = 20765122560.

The previous prime is 79945725527. The next prime is 79945725583. The reversal of 79945725552 is 25552754997.

It is a congruent number.

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, 10811473 + ... + 10818864.

Almost surely, 2^79945725552 is an apocalyptic number.

It is an amenable number.

79945725552 is an abundant number, since it is smaller than the sum of its proper divisors (177541818000).

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

79945725552 is a wasteful number, since it uses less digits than its factorization.

79945725552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21630366 (or 21630360 counting only the distinct ones).

The product of its digits is 39690000, while the sum is 60.

The spelling of 79945725552 in words is "seventy-nine billion, nine hundred forty-five million, seven hundred twenty-five thousand, five hundred fifty-two".