131778321224284 has 48 divisors (see below), whose sum is σ = 266529866803200. Its totient is φ = 55841467283136.

The previous prime is 131778321224267. The next prime is 131778321224299. The reversal of 131778321224284 is 482422123877131.

It is a congruent number.

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, 43608754 + ... + 46532569.

It is an arithmetic number, because the mean of its divisors is an integer number (5552705558400).

Almost surely, 2^{131778321224284} is an apocalyptic number.

131778321224284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131778321224284 is an abundant number, since it is smaller than the sum of its proper divisors (134751545578916).

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

131778321224284 is a wasteful number, since it uses less digits than its factorization.

131778321224284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90141922 (or 90141920 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 55.

The spelling of 131778321224284 in words is "one hundred thirty-one trillion, seven hundred seventy-eight billion, three hundred twenty-one million, two hundred twenty-four thousand, two hundred eighty-four".