28047804458 has 16 divisors (see below), whose sum is σ = 42489529344. Its totient is φ = 13885079040.

The previous prime is 28047804437. The next prime is 28047804469. The reversal of 28047804458 is 85440874082.

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, 12266 + ... + 237162.

It is an arithmetic number, because the mean of its divisors is an integer number (2655595584).

Almost surely, 2^28047804458 is an apocalyptic number.

28047804458 is a deficient number, since it is larger than the sum of its proper divisors (14441724886).

28047804458 is a wasteful number, since it uses less digits than its factorization.

28047804458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225517.

The product of its (nonzero) digits is 2293760, while the sum is 50.

The spelling of 28047804458 in words is "twenty-eight billion, forty-seven million, eight hundred four thousand, four hundred fifty-eight".