79621405632 has 84 divisors (see below), whose sum is σ = 241645141296. Its totient is φ = 24979261440.

The previous prime is 79621405613. The next prime is 79621405637. The reversal of 79621405632 is 23650412697.

79621405632 is a `hidden beast` number, since 7 + 9 + 6 + 2 + 1 + 4 + 0 + 5 + 632 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79621405637) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4055844 + ... + 4075427.

Almost surely, 2^79621405632 is an apocalyptic number.

79621405632 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

79621405632 is an abundant number, since it is smaller than the sum of its proper divisors (162023735664).

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

79621405632 is a wasteful number, since it uses less digits than its factorization.

79621405632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131306 (or 8131293 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 79621405632 in words is "seventy-nine billion, six hundred twenty-one million, four hundred five thousand, six hundred thirty-two".