72045008472 has 32 divisors (see below), whose sum is σ = 180163627200. Its totient is φ = 24008188704.

The previous prime is 72045008429. The next prime is 72045008549. The reversal of 72045008472 is 27480054027.

It is a self number, because there is not a number n which added to its sum of digits gives 72045008472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339178 + ... + 509049.

It is an arithmetic number, because the mean of its divisors is an integer number (5630113350).

Almost surely, 2^72045008472 is an apocalyptic number.

It is an amenable number.

72045008472 is an abundant number, since it is smaller than the sum of its proper divisors (108118618728).

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

72045008472 is a wasteful number, since it uses less digits than its factorization.

72045008472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851775 (or 851771 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The spelling of 72045008472 in words is "seventy-two billion, forty-five million, eight thousand, four hundred seventy-two".