31820854846 has 16 divisors (see below), whose sum is σ = 54811042560. Its totient is φ = 13702760280.

The previous prime is 31820854841. The next prime is 31820854907. The reversal of 31820854846 is 64845802813.

It is a self number, because there is not a number n which added to its sum of digits gives 31820854846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31820854841) 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, 38062806 + ... + 38063641.

It is an arithmetic number, because the mean of its divisors is an integer number (3425690160).

Almost surely, 2^31820854846 is an apocalyptic number.

31820854846 is a deficient number, since it is larger than the sum of its proper divisors (22990187714).

31820854846 is a wasteful number, since it uses less digits than its factorization.

31820854846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76126479.

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 31820854846 in words is "thirty-one billion, eight hundred twenty million, eight hundred fifty-four thousand, eight hundred forty-six".