6504636457 has 8 divisors (see below), whose sum is σ = 7193172960. Its totient is φ = 5832300960.

The previous prime is 6504636451. The next prime is 6504636497. The reversal of 6504636457 is 7546364056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6504636457 - 2¹⁵ = 6504603689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6504636451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4049407 + ... + 4051012.

It is an arithmetic number, because the mean of its divisors is an integer number (899146620).

Almost surely, 2^6504636457 is an apocalyptic number.

It is an amenable number.

6504636457 is a deficient number, since it is larger than the sum of its proper divisors (688536503).

6504636457 is a wasteful number, since it uses less digits than its factorization.

6504636457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8100503.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The square root of 6504636457 is about 80651.3264429048. The cubic root of 6504636457 is about 1866.6992069831.

The spelling of 6504636457 in words is "six billion, five hundred four million, six hundred thirty-six thousand, four hundred fifty-seven".