28864356752 has 40 divisors (see below), whose sum is σ = 69724293312. Its totient is φ = 11245852800.

The previous prime is 28864356751. The next prime is 28864356757. The reversal of 28864356752 is 25765346882.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (28864356751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11713199 + ... + 11715662.

Almost surely, 2^28864356752 is an apocalyptic number.

28864356752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28864356752 is an abundant number, since it is smaller than the sum of its proper divisors (40859936560).

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

28864356752 is a wasteful number, since it uses less digits than its factorization.

28864356752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23428887 (or 23428881 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 56.

The spelling of 28864356752 in words is "twenty-eight billion, eight hundred sixty-four million, three hundred fifty-six thousand, seven hundred fifty-two".