31658016853 has 2 divisors, whose sum is σ = 31658016854. Its totient is φ = 31658016852.

The previous prime is 31658016851. The next prime is 31658016883. The reversal of 31658016853 is 35861085613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31317319089 + 340697764 = 176967^2 + 18458^2 .

It is a cyclic number.

It is not a de Polignac number, because 31658016853 - 2¹ = 31658016851 is a prime.

Together with 31658016851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31658016851) 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 as a sum of consecutive naturals, namely, 15829008426 + 15829008427.

It is an arithmetic number, because the mean of its divisors is an integer number (15829008427).

Almost surely, 2^31658016853 is an apocalyptic number.

It is an amenable number.

31658016853 is a deficient number, since it is larger than the sum of its proper divisors (1).

31658016853 is an equidigital number, since it uses as much as digits as its factorization.

31658016853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 31658016853 in words is "thirty-one billion, six hundred fifty-eight million, sixteen thousand, eight hundred fifty-three".