131891868282 has 128 divisors (see below), whose sum is σ = 293642496000. Its totient is φ = 39327724800.

The previous prime is 131891868271. The next prime is 131891868287. The reversal of 131891868282 is 282868198131.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (131891868287) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27711819 + ... + 27716577.

It is an arithmetic number, because the mean of its divisors is an integer number (2294082000).

Almost surely, 2^131891868282 is an apocalyptic number.

131891868282 is an abundant number, since it is smaller than the sum of its proper divisors (161750627718).

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

131891868282 is a wasteful number, since it uses less digits than its factorization.

131891868282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996.

The product of its digits is 2654208, while the sum is 57.

The spelling of 131891868282 in words is "one hundred thirty-one billion, eight hundred ninety-one million, eight hundred sixty-eight thousand, two hundred eighty-two".