79428861624 has 48 divisors (see below), whose sum is σ = 230992101000. Its totient is φ = 22693960128.

The previous prime is 79428861559. The next prime is 79428861679. The reversal of 79428861624 is 42616882497.

It is a super-3 number, since 3×79428861624³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33769599 + ... + 33771950.

Almost surely, 2^79428861624 is an apocalyptic number.

It is an amenable number.

79428861624 is an abundant number, since it is smaller than the sum of its proper divisors (151563239376).

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

79428861624 is a wasteful number, since it uses less digits than its factorization.

79428861624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67541572 (or 67541561 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The spelling of 79428861624 in words is "seventy-nine billion, four hundred twenty-eight million, eight hundred sixty-one thousand, six hundred twenty-four".