28569668430807 has 12 divisors (see below), whose sum is σ = 47162627250960. Its totient is φ = 16325524817568.

The previous prime is 28569668430763. The next prime is 28569668430887. The reversal of 28569668430807 is 70803486696582.

28569668430807 is a `hidden beast` number, since 2 + 8 + 56 + 9 + 6 + 68 + 430 + 80 + 7 = 666.

It is not a de Polignac number, because 28569668430807 - 2⁸ = 28569668430551 is a prime.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28569668430887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226743400182 + ... + 226743400307.

It is an arithmetic number, because the mean of its divisors is an integer number (3930218937580).

Almost surely, 2^{28569668430807} is an apocalyptic number.

28569668430807 is a deficient number, since it is larger than the sum of its proper divisors (18592958820153).

28569668430807 is a wasteful number, since it uses less digits than its factorization.

28569668430807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453486800502 (or 453486800499 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 72.

The spelling of 28569668430807 in words is "twenty-eight trillion, five hundred sixty-nine billion, six hundred sixty-eight million, four hundred thirty thousand, eight hundred seven".