28856802870 has 96 divisors (see below), whose sum is σ = 85772112192. Its totient is φ = 6593826816.

The previous prime is 28856802857. The next prime is 28856802883. The reversal of 28856802870 is 7820865882.

28856802870 is a `hidden beast` number, since 2 + 8 + 8 + 568 + 0 + 2 + 8 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (28856802857) and next prime (28856802883).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3292414 + ... + 3301166.

It is an arithmetic number, because the mean of its divisors is an integer number (893459502).

Almost surely, 2^28856802870 is an apocalyptic number.

28856802870 is an abundant number, since it is smaller than the sum of its proper divisors (56915309322).

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

28856802870 is a wasteful number, since it uses less digits than its factorization.

28856802870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14006 (or 14003 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 28856802870 in words is "twenty-eight billion, eight hundred fifty-six million, eight hundred two thousand, eight hundred seventy".