631662531883 has 2 divisors, whose sum is σ = 631662531884. Its totient is φ = 631662531882.

The previous prime is 631662531859. The next prime is 631662531937. The reversal of 631662531883 is 388135266136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 631662531883 - 2³³ = 623072597291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 631662531883.

It is not a weakly prime, because it can be changed into another prime (631662532883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315831265941 + 315831265942.

It is an arithmetic number, because the mean of its divisors is an integer number (315831265942).

Almost surely, 2^631662531883 is an apocalyptic number.

631662531883 is a deficient number, since it is larger than the sum of its proper divisors (1).

631662531883 is an equidigital number, since it uses as much as digits as its factorization.

631662531883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 52.

The spelling of 631662531883 in words is "six hundred thirty-one billion, six hundred sixty-two million, five hundred thirty-one thousand, eight hundred eighty-three".