131404401686 has 16 divisors (see below), whose sum is σ = 197281027440. Its totient is φ = 65644089120.

The previous prime is 131404401671. The next prime is 131404401697. The reversal of 131404401686 is 686104404131.

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, 13641920 + ... + 13651548.

It is an arithmetic number, because the mean of its divisors is an integer number (12330064215).

Almost surely, 2^131404401686 is an apocalyptic number.

131404401686 is a deficient number, since it is larger than the sum of its proper divisors (65876625754).

131404401686 is a wasteful number, since it uses less digits than its factorization.

131404401686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14959.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 131404401686 in words is "one hundred thirty-one billion, four hundred four million, four hundred one thousand, six hundred eighty-six".