172374308860 has 24 divisors (see below), whose sum is σ = 389831129856. Its totient is φ = 63645898560.

The previous prime is 172374308833. The next prime is 172374308867. The reversal of 172374308860 is 68803473271.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172374308867) 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, 331488796 + ... + 331489315.

It is an arithmetic number, because the mean of its divisors is an integer number (16242963744).

Almost surely, 2^172374308860 is an apocalyptic number.

172374308860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172374308860 is an abundant number, since it is smaller than the sum of its proper divisors (217456820996).

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

172374308860 is a wasteful number, since it uses less digits than its factorization.

172374308860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662978133 (or 662978131 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 172374308860 in words is "one hundred seventy-two billion, three hundred seventy-four million, three hundred eight thousand, eight hundred sixty".