72544915576 has 32 divisors (see below), whose sum is σ = 158386479840. Its totient is φ = 30504060288.

The previous prime is 72544915567. The next prime is 72544915601. The reversal of 72544915576 is 67551944527.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12218211 + ... + 12224146.

It is an arithmetic number, because the mean of its divisors is an integer number (4949577495).

Almost surely, 2^72544915576 is an apocalyptic number.

It is an amenable number.

72544915576 is an abundant number, since it is smaller than the sum of its proper divisors (85841564264).

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

72544915576 is a wasteful number, since it uses less digits than its factorization.

72544915576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24442423 (or 24442419 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 55.

The spelling of 72544915576 in words is "seventy-two billion, five hundred forty-four million, nine hundred fifteen thousand, five hundred seventy-six".