6349494920 has 32 divisors (see below), whose sum is σ = 14294954520. Its totient is φ = 2538270720.

The previous prime is 6349494881. The next prime is 6349494947. The reversal of 6349494920 is 294949436.

It can be written as a sum of positive squares in 4 ways, for example, as 3210582244 + 3138912676 = 56662^2 + 56026^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20840 + ... + 114600.

Almost surely, 2^6349494920 is an apocalyptic number.

It is an amenable number.

6349494920 is an abundant number, since it is smaller than the sum of its proper divisors (7945459600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6349494920 is a wasteful number, since it uses less digits than its factorization.

6349494920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95465 (or 95461 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 50.

The square root of 6349494920 is about 79683.7180357443. The cubic root of 6349494920 is about 1851.7388005572.

The spelling of 6349494920 in words is "six billion, three hundred forty-nine million, four hundred ninety-four thousand, nine hundred twenty".