172952389506 has 32 divisors (see below), whose sum is σ = 373058360640. Its totient is φ = 53138188224.

The previous prime is 172952389469. The next prime is 172952389567. The reversal of 172952389506 is 605983259271.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1569961 + ... + 1676508.

It is an arithmetic number, because the mean of its divisors is an integer number (11658073770).

Almost surely, 2^172952389506 is an apocalyptic number.

172952389506 is an abundant number, since it is smaller than the sum of its proper divisors (200105971134).

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

172952389506 is a wasteful number, since it uses less digits than its factorization.

172952389506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247170.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 172952389506 in words is "one hundred seventy-two billion, nine hundred fifty-two million, three hundred eighty-nine thousand, five hundred six".