6349126861 has 16 divisors (see below), whose sum is σ = 8188755840. Its totient is φ = 4776770880.

The previous prime is 6349126831. The next prime is 6349126877. The reversal of 6349126861 is 1686219436.

It is not a de Polignac number, because 6349126861 - 2¹¹ = 6349124813 is a prime.

It is a super-2 number, since 2×6349126861² = 80622823794143426642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6349126801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419426 + ... + 1423891.

It is an arithmetic number, because the mean of its divisors is an integer number (511797240).

Almost surely, 2^6349126861 is an apocalyptic number.

It is an amenable number.

6349126861 is a deficient number, since it is larger than the sum of its proper divisors (1839628979).

6349126861 is a wasteful number, since it uses less digits than its factorization.

6349126861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843364.

The product of its digits is 373248, while the sum is 46.

The square root of 6349126861 is about 79681.4085028622. The cubic root of 6349126861 is about 1851.7030201626.

The spelling of 6349126861 in words is "six billion, three hundred forty-nine million, one hundred twenty-six thousand, eight hundred sixty-one".