28302686156 has 24 divisors (see below), whose sum is σ = 53350370304. Its totient is φ = 13099418640.

The previous prime is 28302686123. The next prime is 28302686189. The reversal of 28302686156 is 65168620382.

It is an interprime number because it is at equal distance from previous prime (28302686123) and next prime (28302686189).

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28302686156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4959050 + ... + 4964753.

It is an arithmetic number, because the mean of its divisors is an integer number (2222932096).

Almost surely, 2^28302686156 is an apocalyptic number.

It is an amenable number.

28302686156 is a deficient number, since it is larger than the sum of its proper divisors (25047684148).

28302686156 is a wasteful number, since it uses less digits than its factorization.

28302686156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9923861 (or 9923859 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 28302686156 in words is "twenty-eight billion, three hundred two million, six hundred eighty-six thousand, one hundred fifty-six".