6345264557 has 4 divisors (see below), whose sum is σ = 6345436320. Its totient is φ = 6345092796.

The previous prime is 6345264517. The next prime is 6345264571. The reversal of 6345264557 is 7554625436.

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 6345264557 - 2³² = 2050297261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6345264517) 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, 5207 + ... + 112772.

It is an arithmetic number, because the mean of its divisors is an integer number (1586359080).

Almost surely, 2^6345264557 is an apocalyptic number.

It is an amenable number.

6345264557 is a deficient number, since it is larger than the sum of its proper divisors (171763).

6345264557 is a wasteful number, since it uses less digits than its factorization.

6345264557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171762.

The product of its digits is 3024000, while the sum is 47.

The square root of 6345264557 is about 79657.1688989761. The cubic root of 6345264557 is about 1851.3274677005.

The spelling of 6345264557 in words is "six billion, three hundred forty-five million, two hundred sixty-four thousand, five hundred fifty-seven".