172801072860 has 96 divisors (see below), whose sum is σ = 523940918592. Its totient is φ = 42300610560.

The previous prime is 172801072859. The next prime is 172801072861. The reversal of 172801072860 is 68270108271.

It is an interprime number because it is at equal distance from previous prime (172801072859) and next prime (172801072861).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172801072861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470809 + ... + 753168.

It is an arithmetic number, because the mean of its divisors is an integer number (5457717902).

Almost surely, 2^172801072860 is an apocalyptic number.

172801072860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172801072860 is an abundant number, since it is smaller than the sum of its proper divisors (351139845732).

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

172801072860 is a wasteful number, since it uses less digits than its factorization.

172801072860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224183 (or 1224181 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 172801072860 in words is "one hundred seventy-two billion, eight hundred one million, seventy-two thousand, eight hundred sixty".