28086137262884 has 24 divisors (see below), whose sum is σ = 50497078544640. Its totient is φ = 13661978844416.

The previous prime is 28086137262881. The next prime is 28086137262889. The reversal of 28086137262884 is 48826273168082.

It is a super-2 number, since 2×28086137262884² (a number of 28 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 28086137262884.

It is not an unprimeable number, because it can be changed into a prime (28086137262881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447257069 + ... + 447319860.

It is an arithmetic number, because the mean of its divisors is an integer number (2104044939360).

Almost surely, 2^{28086137262884} is an apocalyptic number.

It is an amenable number.

28086137262884 is a deficient number, since it is larger than the sum of its proper divisors (22410941281756).

28086137262884 is a wasteful number, since it uses less digits than its factorization.

28086137262884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894577147 (or 894577145 counting only the distinct ones).

The product of its (nonzero) digits is 99090432, while the sum is 65.

The spelling of 28086137262884 in words is "twenty-eight trillion, eighty-six billion, one hundred thirty-seven million, two hundred sixty-two thousand, eight hundred eighty-four".