632889427931 has 2 divisors, whose sum is σ = 632889427932. Its totient is φ = 632889427930.

The previous prime is 632889427873. The next prime is 632889427981. The reversal of 632889427931 is 139724988236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 632889427931 - 2¹⁰ = 632889426907 is a prime.

It is a super-2 number, since 2×632889427931² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (632889427981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316444713965 + 316444713966.

It is an arithmetic number, because the mean of its divisors is an integer number (316444713966).

Almost surely, 2^632889427931 is an apocalyptic number.

632889427931 is a deficient number, since it is larger than the sum of its proper divisors (1).

632889427931 is an equidigital number, since it uses as much as digits as its factorization.

632889427931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31352832, while the sum is 62.

The spelling of 632889427931 in words is "six hundred thirty-two billion, eight hundred eighty-nine million, four hundred twenty-seven thousand, nine hundred thirty-one".