6349934689 has 4 divisors (see below), whose sum is σ = 7257068224. Its totient is φ = 5442801156.

The previous prime is 6349934663. The next prime is 6349934699. The reversal of 6349934689 is 9864399436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6349934689 - 2¹³ = 6349926497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6349934659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453566757 + ... + 453566770.

It is an arithmetic number, because the mean of its divisors is an integer number (1814267056).

Almost surely, 2^6349934689 is an apocalyptic number.

It is an amenable number.

6349934689 is a deficient number, since it is larger than the sum of its proper divisors (907133535).

6349934689 is an equidigital number, since it uses as much as digits as its factorization.

6349934689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907133534.

The product of its digits is 30233088, while the sum is 61.

The square root of 6349934689 is about 79686.4774538315. The cubic root of 6349934689 is about 1851.7815503366.

The spelling of 6349934689 in words is "six billion, three hundred forty-nine million, nine hundred thirty-four thousand, six hundred eighty-nine".