72570787224 has 64 divisors (see below), whose sum is σ = 195412422240. Its totient is φ = 22326097920.

The previous prime is 72570787217. The next prime is 72570787243. The reversal of 72570787224 is 42278707527.

It is a happy number.

It is a super-2 number, since 2×72570787224² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 2743984 + ... + 2770304.

Almost surely, 2^72570787224 is an apocalyptic number.

It is an amenable number.

72570787224 is an abundant number, since it is smaller than the sum of its proper divisors (122841635016).

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

72570787224 is a wasteful number, since it uses less digits than its factorization.

72570787224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35180 (or 35176 counting only the distinct ones).

The product of its (nonzero) digits is 3073280, while the sum is 51.

The spelling of 72570787224 in words is "seventy-two billion, five hundred seventy million, seven hundred eighty-seven thousand, two hundred twenty-four".