6479857363349 has 16 divisors (see below), whose sum is σ = 6876686796336. Its totient is φ = 6084770611200.

The previous prime is 6479857363261. The next prime is 6479857363361. The reversal of 6479857363349 is 9433637589746.

It can be written as a sum of positive squares in 8 ways, for example, as 103510192900 + 6376347170449 = 321730^2 + 2525143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6479857363349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6479857365349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98174939 + ... + 98240919.

It is an arithmetic number, because the mean of its divisors is an integer number (429792924771).

Almost surely, 2^{6479857363349} is an apocalyptic number.

It is an amenable number.

6479857363349 is a deficient number, since it is larger than the sum of its proper divisors (396829432987).

6479857363349 is a wasteful number, since it uses less digits than its factorization.

6479857363349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79096.

The product of its digits is 2469035520, while the sum is 74.

The spelling of 6479857363349 in words is "six trillion, four hundred seventy-nine billion, eight hundred fifty-seven million, three hundred sixty-three thousand, three hundred forty-nine".