31292168086 has 4 divisors (see below), whose sum is σ = 46938252132. Its totient is φ = 15646084042.

The previous prime is 31292168057. The next prime is 31292168111. The reversal of 31292168086 is 68086129213.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7823042020 + ... + 7823042023.

It is an arithmetic number, because the mean of its divisors is an integer number (11734563033).

Almost surely, 2^31292168086 is an apocalyptic number.

31292168086 is a deficient number, since it is larger than the sum of its proper divisors (15646084046).

31292168086 is a wasteful number, since it uses less digits than its factorization.

31292168086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15646084045.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 31292168086 in words is "thirty-one billion, two hundred ninety-two million, one hundred sixty-eight thousand, eighty-six".