73615605972 has 12 divisors (see below), whose sum is σ = 171769747296. Its totient is φ = 24538535320.

The previous prime is 73615605923. The next prime is 73615606019. The reversal of 73615605972 is 27950651637.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3067316904 + ... + 3067316927.

It is an arithmetic number, because the mean of its divisors is an integer number (14314145608).

Almost surely, 2^73615605972 is an apocalyptic number.

It is an amenable number.

73615605972 is an abundant number, since it is smaller than the sum of its proper divisors (98154141324).

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

73615605972 is a wasteful number, since it uses less digits than its factorization.

73615605972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134633838 (or 6134633836 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 51.

The spelling of 73615605972 in words is "seventy-three billion, six hundred fifteen million, six hundred five thousand, nine hundred seventy-two".