6349523643 has 12 divisors (see below), whose sum is σ = 9287630560. Its totient is φ = 4179432816.

The previous prime is 6349523641. The next prime is 6349523669. The reversal of 6349523643 is 3463259436.

6349523643 is a `hidden beast` number, since 63 + 4 + 9 + 523 + 64 + 3 = 666.

It is not a de Polignac number, because 6349523643 - 2¹ = 6349523641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6349523641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4464496 + ... + 4465917.

Almost surely, 2^6349523643 is an apocalyptic number.

6349523643 is a deficient number, since it is larger than the sum of its proper divisors (2938106917).

6349523643 is a wasteful number, since it uses less digits than its factorization.

6349523643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8930498 (or 8930495 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 45.

The square root of 6349523643 is about 79683.8982668393. The cubic root of 6349523643 is about 1851.7415927695.

The spelling of 6349523643 in words is "six billion, three hundred forty-nine million, five hundred twenty-three thousand, six hundred forty-three".