28336476864 has 28 divisors (see below), whose sum is σ = 74973595544. Its totient is φ = 9445492224.

The previous prime is 28336476863. The next prime is 28336476893. The reversal of 28336476864 is 46867463382.

It is not an unprimeable number, because it can be changed into a prime (28336476863) 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, 73792717 + ... + 73793100.

Almost surely, 2^28336476864 is an apocalyptic number.

28336476864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28336476864 is an abundant number, since it is smaller than the sum of its proper divisors (46637118680).

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

28336476864 is a wasteful number, since it uses less digits than its factorization.

28336476864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147585832 (or 147585822 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 57.

The spelling of 28336476864 in words is "twenty-eight billion, three hundred thirty-six million, four hundred seventy-six thousand, eight hundred sixty-four".