72541730471344 has 20 divisors (see below), whose sum is σ = 140550491782080. Its totient is φ = 36270635817920.

The previous prime is 72541730471321. The next prime is 72541730471389. The reversal of 72541730471344 is 44317403714527.

It is a junction number, because it is equal to n+sod(n) for n = 72541730471291 and 72541730471300.

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, 11715424 + ... + 16802815.

It is an arithmetic number, because the mean of its divisors is an integer number (7027524589104).

Almost surely, 2^{72541730471344} is an apocalyptic number.

It is an amenable number.

72541730471344 is a deficient number, since it is larger than the sum of its proper divisors (68008761310736).

72541730471344 is a wasteful number, since it uses less digits than its factorization.

72541730471344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28677228 (or 28677222 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 52.

The spelling of 72541730471344 in words is "seventy-two trillion, five hundred forty-one billion, seven hundred thirty million, four hundred seventy-one thousand, three hundred forty-four".