131345914578 has 16 divisors (see below), whose sum is σ = 267144233760. Its totient is φ = 43039904096.

The previous prime is 131345914547. The next prime is 131345914627. The reversal of 131345914578 is 875419543131.

It is a self number, because there is not a number n which added to its sum of digits gives 131345914578.

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, 185516475 + ... + 185517182.

It is an arithmetic number, because the mean of its divisors is an integer number (16696514610).

Almost surely, 2^131345914578 is an apocalyptic number.

131345914578 is an abundant number, since it is smaller than the sum of its proper divisors (135798319182).

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

131345914578 is a wasteful number, since it uses less digits than its factorization.

131345914578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371033721.

The product of its digits is 1814400, while the sum is 51.

The spelling of 131345914578 in words is "one hundred thirty-one billion, three hundred forty-five million, nine hundred fourteen thousand, five hundred seventy-eight".