172499339020 has 24 divisors (see below), whose sum is σ = 381314329200. Its totient is φ = 65368170432.

The previous prime is 172499339011. The next prime is 172499339029. The reversal of 172499339020 is 20933994271.

It is an interprime number because it is at equal distance from previous prime (172499339011) and next prime (172499339029).

It is not an unprimeable number, because it can be changed into a prime (172499339029) 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, 226972435 + ... + 226973194.

It is an arithmetic number, because the mean of its divisors is an integer number (15888097050).

Almost surely, 2^172499339020 is an apocalyptic number.

172499339020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172499339020 is an abundant number, since it is smaller than the sum of its proper divisors (208814990180).

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

172499339020 is a wasteful number, since it uses less digits than its factorization.

172499339020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453945657 (or 453945655 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 172499339020 in words is "one hundred seventy-two billion, four hundred ninety-nine million, three hundred thirty-nine thousand, twenty".