6339539425 has 6 divisors (see below), whose sum is σ = 7861028918. Its totient is φ = 5071631520.

The previous prime is 6339539387. The next prime is 6339539429. The reversal of 6339539425 is 5249359336.

It can be written as a sum of positive squares in 3 ways, for example, as 32638369 + 6306901056 = 5713^2 + 79416^2 .

It is not a de Polignac number, because 6339539425 - 2¹¹ = 6339537377 is a prime.

It is a super-2 number, since 2×6339539425² = 80379520242258661250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6339539429) 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, 126790764 + ... + 126790813.

Almost surely, 2^6339539425 is an apocalyptic number.

It is an amenable number.

6339539425 is a deficient number, since it is larger than the sum of its proper divisors (1521489493).

6339539425 is a wasteful number, since it uses less digits than its factorization.

6339539425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253581587 (or 253581582 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 49.

The square root of 6339539425 is about 79621.2247142682. The cubic root of 6339539425 is about 1850.7705020361.

The spelling of 6339539425 in words is "six billion, three hundred thirty-nine million, five hundred thirty-nine thousand, four hundred twenty-five".