632431973839 has 2 divisors, whose sum is σ = 632431973840. Its totient is φ = 632431973838.

The previous prime is 632431973837. The next prime is 632431973851. The reversal of 632431973839 is 938379134236.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 632431973839 - 2¹ = 632431973837 is a prime.

Together with 632431973837, 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 (632431973837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316215986919 + 316215986920.

It is an arithmetic number, because the mean of its divisors is an integer number (316215986920).

Almost surely, 2^632431973839 is an apocalyptic number.

632431973839 is a deficient number, since it is larger than the sum of its proper divisors (1).

632431973839 is an equidigital number, since it uses as much as digits as its factorization.

632431973839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 58.

The spelling of 632431973839 in words is "six hundred thirty-two billion, four hundred thirty-one million, nine hundred seventy-three thousand, eight hundred thirty-nine".