6349495457 has 4 divisors (see below), whose sum is σ = 6350003220. Its totient is φ = 6348987696.

The previous prime is 6349495417. The next prime is 6349495459. The reversal of 6349495457 is 7545949436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3450857536 + 2898637921 = 58744^2 + 53839^2 .

It is a cyclic number.

It is not a de Polignac number, because 6349495457 - 2¹⁰ = 6349494433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6349495459) 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, 234638 + ... + 260295.

It is an arithmetic number, because the mean of its divisors is an integer number (1587500805).

Almost surely, 2^6349495457 is an apocalyptic number.

It is an amenable number.

6349495457 is a deficient number, since it is larger than the sum of its proper divisors (507763).

6349495457 is a wasteful number, since it uses less digits than its factorization.

6349495457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507762.

The product of its digits is 16329600, while the sum is 56.

The square root of 6349495457 is about 79683.7214053159. The cubic root of 6349495457 is about 1851.7388527600.

The spelling of 6349495457 in words is "six billion, three hundred forty-nine million, four hundred ninety-five thousand, four hundred fifty-seven".