28814417992 has 32 divisors (see below), whose sum is σ = 56326596480. Its totient is φ = 13806636480.

The previous prime is 28814417953. The next prime is 28814417999. The reversal of 28814417992 is 29971441882.

It is not an unprimeable number, because it can be changed into a prime (28814417999) 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, 771984 + ... + 808447.

It is an arithmetic number, because the mean of its divisors is an integer number (1760206140).

Almost surely, 2^28814417992 is an apocalyptic number.

It is an amenable number.

28814417992 is a deficient number, since it is larger than the sum of its proper divisors (27512178488).

28814417992 is a wasteful number, since it uses less digits than its factorization.

28814417992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580533 (or 1580529 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The spelling of 28814417992 in words is "twenty-eight billion, eight hundred fourteen million, four hundred seventeen thousand, nine hundred ninety-two".