28751055664 has 20 divisors (see below), whose sum is σ = 58637022040. Its totient is φ = 13618920960.

The previous prime is 28751055659. The next prime is 28751055667. The reversal of 28751055664 is 46655015782.

It is not an unprimeable number, because it can be changed into a prime (28751055667) 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, 47287617 + ... + 47288224.

It is an arithmetic number, because the mean of its divisors is an integer number (2931851102).

Almost surely, 2^28751055664 is an apocalyptic number.

It is an amenable number.

28751055664 is an abundant number, since it is smaller than the sum of its proper divisors (29885966376).

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

28751055664 is a wasteful number, since it uses less digits than its factorization.

28751055664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94575868 (or 94575862 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 28751055664 in words is "twenty-eight billion, seven hundred fifty-one million, fifty-five thousand, six hundred sixty-four".