63402630831 has 6 divisors (see below), whose sum is σ = 91581577880. Its totient is φ = 42268420548.

The previous prime is 63402630787. The next prime is 63402630833. The reversal of 63402630831 is 13803620436.

63402630831 is a `hidden beast` number, since 6 + 340 + 2 + 6 + 308 + 3 + 1 = 666.

It is not a de Polignac number, because 63402630831 - 2²⁵ = 63369076399 is a prime.

It is a super-2 number, since 2×63402630831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63402630833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3522368371 + ... + 3522368388.

Almost surely, 2^63402630831 is an apocalyptic number.

63402630831 is a deficient number, since it is larger than the sum of its proper divisors (28178947049).

63402630831 is a wasteful number, since it uses less digits than its factorization.

63402630831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044736765 (or 7044736762 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 63402630831 in words is "sixty-three billion, four hundred two million, six hundred thirty thousand, eight hundred thirty-one".