31612859963 has 2 divisors, whose sum is σ = 31612859964. Its totient is φ = 31612859962.

The previous prime is 31612859869. The next prime is 31612860023. The reversal of 31612859963 is 36995821613.

It is a strong prime.

It is an emirp because it is prime and its reverse (36995821613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31612859963 - 2¹² = 31612855867 is a prime.

It is a super-2 number, since 2×31612859963² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31612859263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15806429981 + 15806429982.

It is an arithmetic number, because the mean of its divisors is an integer number (15806429982).

Almost surely, 2^31612859963 is an apocalyptic number.

31612859963 is a deficient number, since it is larger than the sum of its proper divisors (1).

31612859963 is an equidigital number, since it uses as much as digits as its factorization.

31612859963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 53.

The spelling of 31612859963 in words is "thirty-one billion, six hundred twelve million, eight hundred fifty-nine thousand, nine hundred sixty-three".