720172652532 has 48 divisors (see below), whose sum is σ = 1689982862400. Its totient is φ = 238689285120.

The previous prime is 720172652509. The next prime is 720172652533. The reversal of 720172652532 is 235256271027.

It is a super-2 number, since 2×720172652532² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720172652533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29477682 + ... + 29502102.

It is an arithmetic number, because the mean of its divisors is an integer number (35207976300).

Almost surely, 2^720172652532 is an apocalyptic number.

It is an amenable number.

720172652532 is an abundant number, since it is smaller than the sum of its proper divisors (969810209868).

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

720172652532 is a wasteful number, since it uses less digits than its factorization.

720172652532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38336 (or 38334 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 720172652532 in words is "seven hundred twenty billion, one hundred seventy-two million, six hundred fifty-two thousand, five hundred thirty-two".