31904862919046 has 32 divisors (see below), whose sum is σ = 54923677820928. Its totient is φ = 13785407206560.

The previous prime is 31904862919043. The next prime is 31904862919057. The reversal of 31904862919046 is 64091926840913.

It is a self number, because there is not a number n which added to its sum of digits gives 31904862919046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31904862919043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567552890 + ... + 567609101.

It is an arithmetic number, because the mean of its divisors is an integer number (1716364931904).

Almost surely, 2^{31904862919046} is an apocalyptic number.

31904862919046 is a deficient number, since it is larger than the sum of its proper divisors (23018814901882).

31904862919046 is a wasteful number, since it uses less digits than its factorization.

31904862919046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135162076.

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 31904862919046 in words is "thirty-one trillion, nine hundred four billion, eight hundred sixty-two million, nine hundred nineteen thousand, forty-six".