172425922520 has 64 divisors (see below), whose sum is σ = 410528010240. Its totient is φ = 65042454400.

The previous prime is 172425922489. The next prime is 172425922541. The reversal of 172425922520 is 25229524271.

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, 1254536 + ... + 1385175.

It is an arithmetic number, because the mean of its divisors is an integer number (6414500160).

Almost surely, 2^172425922520 is an apocalyptic number.

172425922520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172425922520 is an abundant number, since it is smaller than the sum of its proper divisors (238102087720).

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

172425922520 is a wasteful number, since it uses less digits than its factorization.

172425922520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639816 (or 2639812 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 172425922520 in words is "one hundred seventy-two billion, four hundred twenty-five million, nine hundred twenty-two thousand, five hundred twenty".