564628683891 has 16 divisors (see below), whose sum is σ = 768883027968. Its totient is φ = 368397292800.

The previous prime is 564628683889. The next prime is 564628683977. The reversal of 564628683891 is 198386826465.

It is not a de Polignac number, because 564628683891 - 2¹ = 564628683889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (564628683191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5567326 + ... + 5667836.

It is an arithmetic number, because the mean of its divisors is an integer number (48055189248).

Almost surely, 2^564628683891 is an apocalyptic number.

564628683891 is a deficient number, since it is larger than the sum of its proper divisors (204254344077).

564628683891 is a wasteful number, since it uses less digits than its factorization.

564628683891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140402.

The product of its digits is 119439360, while the sum is 66.

The spelling of 564628683891 in words is "five hundred sixty-four billion, six hundred twenty-eight million, six hundred eighty-three thousand, eight hundred ninety-one".