28080865512650 has 24 divisors (see below), whose sum is σ = 52231223550240. Its totient is φ = 11232171216560.

The previous prime is 28080865512619. The next prime is 28080865512673. The reversal of 28080865512650 is 5621556808082.

It is a super-2 number, since 2×28080865512650² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1109030 + ... + 7575729.

It is an arithmetic number, because the mean of its divisors is an integer number (2176300981260).

Almost surely, 2^{28080865512650} is an apocalyptic number.

28080865512650 is a deficient number, since it is larger than the sum of its proper divisors (24150358037590).

28080865512650 is a wasteful number, since it uses less digits than its factorization.

28080865512650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8749438 (or 8749433 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 56.

The spelling of 28080865512650 in words is "twenty-eight trillion, eighty billion, eight hundred sixty-five million, five hundred twelve thousand, six hundred fifty".