6564841494 has 8 divisors (see below), whose sum is σ = 13129683000. Its totient is φ = 2188280496.

The previous prime is 6564841469. The next prime is 6564841529. The reversal of 6564841494 is 4941484656.

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

6564841494 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547070119 + ... + 547070130.

It is an arithmetic number, because the mean of its divisors is an integer number (1641210375).

Almost surely, 2^6564841494 is an apocalyptic number.

6564841494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6564841494 is a wasteful number, since it uses less digits than its factorization.

6564841494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094140254.

The product of its digits is 3317760, while the sum is 51.

The square root of 6564841494 is about 81023.7094559364. The cubic root of 6564841494 is about 1872.4407388956.

The spelling of 6564841494 in words is "six billion, five hundred sixty-four million, eight hundred forty-one thousand, four hundred ninety-four".