131610774328 has 32 divisors (see below), whose sum is σ = 269647464960. Its totient is φ = 59724499680.

The previous prime is 131610774311. The next prime is 131610774343. The reversal of 131610774328 is 823477016131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178526 + ... + 1285357.

It is an arithmetic number, because the mean of its divisors is an integer number (8426483280).

Almost surely, 2^131610774328 is an apocalyptic number.

It is an amenable number.

131610774328 is an abundant number, since it is smaller than the sum of its proper divisors (138036690632).

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

131610774328 is a wasteful number, since it uses less digits than its factorization.

131610774328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464507 (or 2464503 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 131610774328 in words is "one hundred thirty-one billion, six hundred ten million, seven hundred seventy-four thousand, three hundred twenty-eight".