6349964943 has 16 divisors (see below), whose sum is σ = 9689807360. Its totient is φ = 3623425056.

The previous prime is 6349964941. The next prime is 6349964947. The reversal of 6349964943 is 3494699436.

It is not a de Polignac number, because 6349964943 - 2¹ = 6349964941 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6349964941) 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, 198355 + ... + 228132.

It is an arithmetic number, because the mean of its divisors is an integer number (605612960).

Almost surely, 2^6349964943 is an apocalyptic number.

6349964943 is a deficient number, since it is larger than the sum of its proper divisors (3339842417).

6349964943 is a wasteful number, since it uses less digits than its factorization.

6349964943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427206.

The product of its digits is 15116544, while the sum is 57.

The square root of 6349964943 is about 79686.6672850609. The cubic root of 6349964943 is about 1851.7844912440.

It can be divided in two parts, 63 and 49964943, that added together give a triangular number (49965006 = T₉₉₉₆).

The spelling of 6349964943 in words is "six billion, three hundred forty-nine million, nine hundred sixty-four thousand, nine hundred forty-three".