72549620524 has 18 divisors (see below), whose sum is σ = 127886425940. Its totient is φ = 36010687656.

The previous prime is 72549620503. The next prime is 72549620639. The reversal of 72549620524 is 42502694527.

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 5 ways as a sum of consecutive naturals, for example, 6345477 + ... + 6356899.

Almost surely, 2^72549620524 is an apocalyptic number.

It is an amenable number.

72549620524 is a deficient number, since it is larger than the sum of its proper divisors (55336805416).

72549620524 is an equidigital number, since it uses as much as digits as its factorization.

72549620524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22989 (or 11564 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 72549620524 in words is "seventy-two billion, five hundred forty-nine million, six hundred twenty thousand, five hundred twenty-four".