72472044432 has 40 divisors (see below), whose sum is σ = 197073105760. Its totient is φ = 22885908480.

The previous prime is 72472044427. The next prime is 72472044433. The reversal of 72472044432 is 23444027427.

It is not an unprimeable number, because it can be changed into a prime (72472044433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39731569 + ... + 39733392.

It is an arithmetic number, because the mean of its divisors is an integer number (4926827644).

Almost surely, 2^72472044432 is an apocalyptic number.

It is an amenable number.

72472044432 is an abundant number, since it is smaller than the sum of its proper divisors (124601061328).

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

72472044432 is a wasteful number, since it uses less digits than its factorization.

72472044432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79464991 (or 79464985 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 39.

The spelling of 72472044432 in words is "seventy-two billion, four hundred seventy-two million, forty-four thousand, four hundred thirty-two".