172618696940 has 24 divisors (see below), whose sum is σ = 374999239440. Its totient is φ = 66666531008.

The previous prime is 172618696933. The next prime is 172618697023. The reversal of 172618696940 is 49696816271.

It is a self number, because there is not a number n which added to its sum of digits gives 172618696940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148808642 + ... + 148809801.

It is an arithmetic number, because the mean of its divisors is an integer number (15624968310).

Almost surely, 2^172618696940 is an apocalyptic number.

172618696940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172618696940 is an abundant number, since it is smaller than the sum of its proper divisors (202380542500).

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

172618696940 is a wasteful number, since it uses less digits than its factorization.

172618696940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297618481 (or 297618479 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 172618696940 in words is "one hundred seventy-two billion, six hundred eighteen million, six hundred ninety-six thousand, nine hundred forty".