172094489568 has 72 divisors (see below), whose sum is σ = 507519420408. Its totient is φ = 57364827264.

The previous prime is 172094489551. The next prime is 172094489569. The reversal of 172094489568 is 865984490271.

172094489568 is a `hidden beast` number, since 1 + 7 + 2 + 0 + 94 + 489 + 5 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172094489569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11057971 + ... + 11073522.

It is an arithmetic number, because the mean of its divisors is an integer number (7048880839).

Almost surely, 2^172094489568 is an apocalyptic number.

172094489568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

172094489568 is an abundant number, since it is smaller than the sum of its proper divisors (335424930840).

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

172094489568 is an equidigital number, since it uses as much as digits as its factorization.

172094489568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22131518 (or 22131498 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 172094489568 in words is "one hundred seventy-two billion, ninety-four million, four hundred eighty-nine thousand, five hundred sixty-eight".