6339988963 has 36 divisors (see below), whose sum is σ = 8230540080. Its totient is φ = 4780274400.

The previous prime is 6339988927. The next prime is 6339988979. The reversal of 6339988963 is 3698899336.

It is not a de Polignac number, because 6339988963 - 2²⁵ = 6306434531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6339988895 and 6339988904.

It is not an unprimeable number, because it can be changed into a prime (6339988763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 810073 + ... + 817861.

Almost surely, 2^6339988963 is an apocalyptic number.

6339988963 is a deficient number, since it is larger than the sum of its proper divisors (1890551117).

6339988963 is a wasteful number, since it uses less digits than its factorization.

6339988963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7880 (or 7838 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 64.

The square root of 6339988963 is about 79624.0476426563. The cubic root of 6339988963 is about 1850.8142471701.

The spelling of 6339988963 in words is "six billion, three hundred thirty-nine million, nine hundred eighty-eight thousand, nine hundred sixty-three".