6311808963 has 6 divisors (see below), whose sum is σ = 9117057404. Its totient is φ = 4207872636.

The previous prime is 6311808961. The next prime is 6311808973. The reversal of 6311808963 is 3698081136.

It is a happy number.

6311808963 is a `hidden beast` number, since 631 + 1 + 8 + 0 + 8 + 9 + 6 + 3 = 666.

It is not a de Polignac number, because 6311808963 - 2¹ = 6311808961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6311808961) 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, 350656045 + ... + 350656062.

Almost surely, 2^6311808963 is an apocalyptic number.

6311808963 is a deficient number, since it is larger than the sum of its proper divisors (2805248441).

6311808963 is a wasteful number, since it uses less digits than its factorization.

6311808963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701312113 (or 701312110 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 6311808963 is about 79446.8939795635. The cubic root of 6311808963 is about 1848.0680062608.

The spelling of 6311808963 in words is "six billion, three hundred eleven million, eight hundred eight thousand, nine hundred sixty-three".