131810863248 has 70 divisors (see below), whose sum is σ = 382900195014. Its totient is φ = 43936950528.

The previous prime is 131810863243. The next prime is 131810863267. The reversal of 131810863248 is 842368018131.

131810863248 is a `hidden beast` number, since 1 + 3 + 1 + 8 + 1 + 0 + 8 + 632 + 4 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 116545766544 + 15265096704 = 341388^2 + 123552^2 .

It is not an unprimeable number, because it can be changed into a prime (131810863241) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 5638665 + ... + 5661992.

Almost surely, 2^131810863248 is an apocalyptic number.

131810863248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131810863248 is an abundant number, since it is smaller than the sum of its proper divisors (251089331766).

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

131810863248 is an equidigital number, since it uses as much as digits as its factorization.

131810863248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11300683 (or 11300662 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 131810863248 in words is "one hundred thirty-one billion, eight hundred ten million, eight hundred sixty-three thousand, two hundred forty-eight".