172300231072 has 24 divisors (see below), whose sum is σ = 344777003172. Its totient is φ = 84737817600.

The previous prime is 172300231069. The next prime is 172300231099. The reversal of 172300231072 is 270132003271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 171564953616 + 735277456 = 414204^2 + 27116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 172300231072.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44132329 + ... + 44136232.

Almost surely, 2^172300231072 is an apocalyptic number.

It is an amenable number.

172300231072 is an abundant number, since it is smaller than the sum of its proper divisors (172476772100).

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

172300231072 is an equidigital number, since it uses as much as digits as its factorization.

172300231072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88268632 (or 88268624 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The spelling of 172300231072 in words is "one hundred seventy-two billion, three hundred million, two hundred thirty-one thousand, seventy-two".