28664745048 has 64 divisors (see below), whose sum is σ = 83815056000. Its totient is φ = 9052023456.

The previous prime is 28664745001. The next prime is 28664745077. The reversal of 28664745048 is 84054746682.

It is a happy number.

28664745048 is a `hidden beast` number, since 2 + 8 + 6 + 64 + 74 + 504 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 28664744985 and 28664745003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3488190 + ... + 3496397.

It is an arithmetic number, because the mean of its divisors is an integer number (1309610250).

Almost surely, 2^28664745048 is an apocalyptic number.

It is an amenable number.

28664745048 is an abundant number, since it is smaller than the sum of its proper divisors (55150310952).

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

28664745048 is a wasteful number, since it uses less digits than its factorization.

28664745048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6984621 (or 6984611 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 28664745048 in words is "twenty-eight billion, six hundred sixty-four million, seven hundred forty-five thousand, forty-eight".