172952389531 has 8 divisors (see below), whose sum is σ = 173306099664. Its totient is φ = 172598835360.

The previous prime is 172952389469. The next prime is 172952389567. The reversal of 172952389531 is 135983259271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172952389531 - 2¹³ = 172952381339 is a prime.

It is a super-2 number, since 2×172952389531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172952381531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326761 + ... + 2399941.

It is an arithmetic number, because the mean of its divisors is an integer number (21663262458).

Almost surely, 2^172952389531 is an apocalyptic number.

172952389531 is a deficient number, since it is larger than the sum of its proper divisors (353710133).

172952389531 is an equidigital number, since it uses as much as digits as its factorization.

172952389531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77981.

The product of its digits is 4082400, while the sum is 55.

The spelling of 172952389531 in words is "one hundred seventy-two billion, nine hundred fifty-two million, three hundred eighty-nine thousand, five hundred thirty-one".