72742440011928 has 32 divisors (see below), whose sum is σ = 191427473716800. Its totient is φ = 22971296845728.

The previous prime is 72742440011869. The next prime is 72742440011981. The reversal of 72742440011928 is 82911004424727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79761446926 + ... + 79761447837.

It is an arithmetic number, because the mean of its divisors is an integer number (5982108553650).

Almost surely, 2^{72742440011928} is an apocalyptic number.

It is an amenable number.

72742440011928 is an abundant number, since it is smaller than the sum of its proper divisors (118685033704872).

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

72742440011928 is a wasteful number, since it uses less digits than its factorization.

72742440011928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159522894791 (or 159522894787 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 72742440011928 in words is "seventy-two trillion, seven hundred forty-two billion, four hundred forty million, eleven thousand, nine hundred twenty-eight".