6249879656 has 16 divisors (see below), whose sum is σ = 11786264100. Its totient is φ = 3106875904.

The previous prime is 6249879641. The next prime is 6249879659. The reversal of 6249879656 is 6569789426.

It can be written as a sum of positive squares in 2 ways, for example, as 6199042756 + 50836900 = 78734^2 + 7130^2 .

It is not an unprimeable number, because it can be changed into a prime (6249879659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2256521 + ... + 2259288.

Almost surely, 2^6249879656 is an apocalyptic number.

It is an amenable number.

6249879656 is a deficient number, since it is larger than the sum of its proper divisors (5536384444).

6249879656 is a wasteful number, since it uses less digits than its factorization.

6249879656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515988 (or 4515984 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 62.

The square root of 6249879656 is about 79056.1803782601. The cubic root of 6249879656 is about 1842.0039265487.

The spelling of 6249879656 in words is "six billion, two hundred forty-nine million, eight hundred seventy-nine thousand, six hundred fifty-six".