28804706664 has 16 divisors (see below), whose sum is σ = 72011766720. Its totient is φ = 9601568880.

The previous prime is 28804706641. The next prime is 28804706669. The reversal of 28804706664 is 46660740882.

It is a super-2 number, since 2×28804706664² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28804706669) 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, 600098032 + ... + 600098079.

It is an arithmetic number, because the mean of its divisors is an integer number (4500735420).

Almost surely, 2^28804706664 is an apocalyptic number.

28804706664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28804706664 is an abundant number, since it is smaller than the sum of its proper divisors (43207060056).

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

28804706664 is a wasteful number, since it uses less digits than its factorization.

28804706664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200196120 (or 1200196116 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 28804706664 in words is "twenty-eight billion, eight hundred four million, seven hundred six thousand, six hundred sixty-four".