72706567520 has 48 divisors (see below), whose sum is σ = 171792916848. Its totient is φ = 29078622720.

The previous prime is 72706567519. The next prime is 72706567529. The reversal of 72706567520 is 2576560727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72706567529) by changing a digit.

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, 1314830 + ... + 1369010.

It is an arithmetic number, because the mean of its divisors is an integer number (3579019101).

Almost surely, 2^72706567520 is an apocalyptic number.

It is an amenable number.

72706567520 is an abundant number, since it is smaller than the sum of its proper divisors (99086349328).

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

72706567520 is a wasteful number, since it uses less digits than its factorization.

72706567520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62583 (or 62575 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 72706567520 in words is "seventy-two billion, seven hundred six million, five hundred sixty-seven thousand, five hundred twenty".