172278098808 has 64 divisors (see below), whose sum is σ = 447069957120. Its totient is φ = 55282800000.

The previous prime is 172278098791. The next prime is 172278098833. The reversal of 172278098808 is 808890872271.

It is a super-2 number, since 2×172278098808² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183068 + ... + 1320683.

It is an arithmetic number, because the mean of its divisors is an integer number (6985468080).

Almost surely, 2^172278098808 is an apocalyptic number.

It is an amenable number.

172278098808 is an abundant number, since it is smaller than the sum of its proper divisors (274791858312).

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

172278098808 is a wasteful number, since it uses less digits than its factorization.

172278098808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503868 (or 2503864 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 60.

The spelling of 172278098808 in words is "one hundred seventy-two billion, two hundred seventy-eight million, ninety-eight thousand, eight hundred eight".