73728728052 has 48 divisors (see below), whose sum is σ = 197020508160. Its totient is φ = 21021361632.

The previous prime is 73728728023. The next prime is 73728728063. The reversal of 73728728052 is 25082782737.

It is a junction number, because it is equal to n+sod(n) for n = 73728727986 and 73728728004.

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, 875968 + ... + 956439.

It is an arithmetic number, because the mean of its divisors is an integer number (4104593920).

Almost surely, 2^73728728052 is an apocalyptic number.

It is an amenable number.

73728728052 is an abundant number, since it is smaller than the sum of its proper divisors (123291780108).

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

73728728052 is a wasteful number, since it uses less digits than its factorization.

73728728052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832900 (or 1832898 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 51.

The spelling of 73728728052 in words is "seventy-three billion, seven hundred twenty-eight million, seven hundred twenty-eight thousand, fifty-two".