172122700740 has 48 divisors (see below), whose sum is σ = 482005200768. Its totient is φ = 45893516544.

The previous prime is 172122700727. The next prime is 172122700753. The reversal of 172122700740 is 47007221271.

It is an interprime number because it is at equal distance from previous prime (172122700727) and next prime (172122700753).

It is a super-2 number, since 2×172122700740² (a number of 23 digits) contains 22 as substring.

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, 300129 + ... + 659031.

It is an arithmetic number, because the mean of its divisors is an integer number (10041775016).

Almost surely, 2^172122700740 is an apocalyptic number.

172122700740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172122700740 is an abundant number, since it is smaller than the sum of its proper divisors (309882500028).

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

172122700740 is a wasteful number, since it uses less digits than its factorization.

172122700740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366908 (or 366906 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The spelling of 172122700740 in words is "one hundred seventy-two billion, one hundred twenty-two million, seven hundred thousand, seven hundred forty".