172332374940 has 72 divisors (see below), whose sum is σ = 570263501808. Its totient is φ = 41777544960.

The previous prime is 172332374909. The next prime is 172332374941. The reversal of 172332374940 is 49473233271.

172332374940 is a `hidden beast` number, since 1 + 7 + 233 + 2 + 374 + 9 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172332374941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43516297 + ... + 43520256.

It is an arithmetic number, because the mean of its divisors is an integer number (7920326414).

Almost surely, 2^172332374940 is an apocalyptic number.

172332374940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172332374940 is an abundant number, since it is smaller than the sum of its proper divisors (397931126868).

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

172332374940 is a wasteful number, since it uses less digits than its factorization.

172332374940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87036579 (or 87036574 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 172332374940 in words is "one hundred seventy-two billion, three hundred thirty-two million, three hundred seventy-four thousand, nine hundred forty".