28495794870 has 64 divisors (see below), whose sum is σ = 76003704000. Its totient is φ = 7597387008.

The previous prime is 28495794853. The next prime is 28495794889. The reversal of 28495794870 is 7849759482.

28495794870 is a `hidden beast` number, since 2 + 8 + 495 + 79 + 4 + 8 + 70 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28495794798 and 28495794807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2431986 + ... + 2443674.

It is an arithmetic number, because the mean of its divisors is an integer number (1187557875).

Almost surely, 2^28495794870 is an apocalyptic number.

28495794870 is an abundant number, since it is smaller than the sum of its proper divisors (47507909130).

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

28495794870 is a wasteful number, since it uses less digits than its factorization.

28495794870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20734 (or 20728 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 28495794870 in words is "twenty-eight billion, four hundred ninety-five million, seven hundred ninety-four thousand, eight hundred seventy".