28737010864 has 80 divisors (see below), whose sum is σ = 60257393280. Its totient is φ = 13231710720.

The previous prime is 28737010831. The next prime is 28737010877. The reversal of 28737010864 is 46801073782.

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, 3523239 + ... + 3531385.

It is an arithmetic number, because the mean of its divisors is an integer number (753217416).

Almost surely, 2^28737010864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28737010864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30128696640).

28737010864 is an abundant number, since it is smaller than the sum of its proper divisors (31520382416).

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

28737010864 is a wasteful number, since it uses less digits than its factorization.

28737010864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8498 (or 8492 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 28737010864 in words is "twenty-eight billion, seven hundred thirty-seven million, ten thousand, eight hundred sixty-four".