31940886704091 has 8 divisors (see below), whose sum is σ = 42652278364944. Its totient is φ = 21261709756320.

The previous prime is 31940886704081. The next prime is 31940886704117. The reversal of 31940886704091 is 19040768804913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-31940886704091 is a prime.

It is a super-2 number, since 2×31940886704091² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31940886704081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8053675956 + ... + 8053679921.

It is an arithmetic number, because the mean of its divisors is an integer number (5331534795618).

Almost surely, 2^{31940886704091} is an apocalyptic number.

31940886704091 is a deficient number, since it is larger than the sum of its proper divisors (10711391660853).

31940886704091 is a wasteful number, since it uses less digits than its factorization.

31940886704091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16107356541.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 31940886704091 in words is "thirty-one trillion, nine hundred forty billion, eight hundred eighty-six million, seven hundred four thousand, ninety-one".