172197340992 has 112 divisors (see below), whose sum is σ = 506345952000. Its totient is φ = 57385774080.

The previous prime is 172197340981. The next prime is 172197341021. The reversal of 172197340992 is 299043791271.

It is a happy number.

172197340992 is a `hidden beast` number, since 1 + 72 + 19 + 73 + 409 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent 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, 9859884 + ... + 9877332.

It is an arithmetic number, because the mean of its divisors is an integer number (4520946000).

Almost surely, 2^172197340992 is an apocalyptic number.

172197340992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172197340992 is an abundant number, since it is smaller than the sum of its proper divisors (334148611008).

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

172197340992 is a wasteful number, since it uses less digits than its factorization.

172197340992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23181 (or 23165 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 172197340992 in words is "one hundred seventy-two billion, one hundred ninety-seven million, three hundred forty thousand, nine hundred ninety-two".