72570958509 has 64 divisors (see below), whose sum is σ = 116385325056. Its totient is φ = 39355144704.

The previous prime is 72570958501. The next prime is 72570958519. The reversal of 72570958509 is 90585907527.

It is not a de Polignac number, because 72570958509 - 2³ = 72570958501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72570958501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11208097 + ... + 11214569.

It is an arithmetic number, because the mean of its divisors is an integer number (1818520704).

Almost surely, 2^72570958509 is an apocalyptic number.

It is an amenable number.

72570958509 is a deficient number, since it is larger than the sum of its proper divisors (43814366547).

72570958509 is a wasteful number, since it uses less digits than its factorization.

72570958509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6874.

The product of its (nonzero) digits is 7938000, while the sum is 57.

The spelling of 72570958509 in words is "seventy-two billion, five hundred seventy million, nine hundred fifty-eight thousand, five hundred nine".