28287004264 has 16 divisors (see below), whose sum is σ = 53176619520. Its totient is φ = 14106572400.

The previous prime is 28287004247. The next prime is 28287004271. The reversal of 28287004264 is 46240078282.

It is a super-2 number, since 2×28287004264² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28287004264.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4612962 + ... + 4619089.

It is an arithmetic number, because the mean of its divisors is an integer number (3323538720).

Almost surely, 2^28287004264 is an apocalyptic number.

It is an amenable number.

28287004264 is a deficient number, since it is larger than the sum of its proper divisors (24889615256).

28287004264 is a wasteful number, since it uses less digits than its factorization.

28287004264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232440 (or 9232436 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 43.

The spelling of 28287004264 in words is "twenty-eight billion, two hundred eighty-seven million, four thousand, two hundred sixty-four".