178872427120 has 20 divisors (see below), whose sum is σ = 415878393240. Its totient is φ = 71548970816.

The previous prime is 178872427099. The next prime is 178872427163. The reversal of 178872427120 is 21724278871.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×178872427120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117952590 + ... + 1117952749.

It is an arithmetic number, because the mean of its divisors is an integer number (20793919662).

Almost surely, 2^178872427120 is an apocalyptic number.

178872427120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

178872427120 is an abundant number, since it is smaller than the sum of its proper divisors (237005966120).

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

178872427120 is a wasteful number, since it uses less digits than its factorization.

178872427120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235905352 (or 2235905346 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 49.

The spelling of 178872427120 in words is "one hundred seventy-eight billion, eight hundred seventy-two million, four hundred twenty-seven thousand, one hundred twenty".