131142877568 has 32 divisors (see below), whose sum is σ = 270270216000. Its totient is φ = 63310352896.

The previous prime is 131142877513. The next prime is 131142877573. The reversal of 131142877568 is 865778241131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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, 17661008 + ... + 17668431.

It is an arithmetic number, because the mean of its divisors is an integer number (8445944250).

Almost surely, 2^131142877568 is an apocalyptic number.

It is an amenable number.

131142877568 is an abundant number, since it is smaller than the sum of its proper divisors (139127338432).

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

131142877568 is an equidigital number, since it uses as much as digits as its factorization.

131142877568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35329482 (or 35329470 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 53.

The spelling of 131142877568 in words is "one hundred thirty-one billion, one hundred forty-two million, eight hundred seventy-seven thousand, five hundred sixty-eight".