172724202374320 has 40 divisors (see below), whose sum is σ = 401604820333920. Its totient is φ = 69086059476480.

The previous prime is 172724202374293. The next prime is 172724202374333. The reversal of 172724202374320 is 23473202427271.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55049500 + ... + 58102459.

It is an arithmetic number, because the mean of its divisors is an integer number (10040120508348).

Almost surely, 2^{172724202374320} is an apocalyptic number.

172724202374320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172724202374320 is an abundant number, since it is smaller than the sum of its proper divisors (228880617959600).

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

172724202374320 is a wasteful number, since it uses less digits than its factorization.

172724202374320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113171053 (or 113171047 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 46.

The spelling of 172724202374320 in words is "one hundred seventy-two trillion, seven hundred twenty-four billion, two hundred two million, three hundred seventy-four thousand, three hundred twenty".