131868434346 has 16 divisors (see below), whose sum is σ = 287712947808. Its totient is φ = 39960131600.

The previous prime is 131868434297. The next prime is 131868434377. The reversal of 131868434346 is 643434868131.

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, 999003225 + ... + 999003356.

It is an arithmetic number, because the mean of its divisors is an integer number (17982059238).

Almost surely, 2^131868434346 is an apocalyptic number.

131868434346 is an abundant number, since it is smaller than the sum of its proper divisors (155844513462).

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

131868434346 is a wasteful number, since it uses less digits than its factorization.

131868434346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998006597.

The product of its digits is 3981312, while the sum is 51.

The spelling of 131868434346 in words is "one hundred thirty-one billion, eight hundred sixty-eight million, four hundred thirty-four thousand, three hundred forty-six".