6339950977 has 4 divisors (see below), whose sum is σ = 6341068756. Its totient is φ = 6338833200.

The previous prime is 6339950959. The next prime is 6339951041. The reversal of 6339950977 is 7790599336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4582748416 + 1757202561 = 67696^2 + 41919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6339950977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6339950677) 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 3 ways as a sum of consecutive naturals, for example, 550338 + ... + 561739.

It is an arithmetic number, because the mean of its divisors is an integer number (1585267189).

Almost surely, 2^6339950977 is an apocalyptic number.

It is an amenable number.

6339950977 is a deficient number, since it is larger than the sum of its proper divisors (1117779).

6339950977 is a wasteful number, since it uses less digits than its factorization.

6339950977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117778.

The product of its (nonzero) digits is 9644670, while the sum is 58.

The square root of 6339950977 is about 79623.8091088338. The cubic root of 6339950977 is about 1850.8105507824.

The spelling of 6339950977 in words is "six billion, three hundred thirty-nine million, nine hundred fifty thousand, nine hundred seventy-seven".