28083404507 has 16 divisors (see below), whose sum is σ = 30178316160. Its totient is φ = 26039190528.

The previous prime is 28083404491. The next prime is 28083404527. The reversal of 28083404507 is 70540438082.

It is a cyclic number.

It is not a de Polignac number, because 28083404507 - 2⁴ = 28083404491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28083404527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590873 + ... + 636629.

It is an arithmetic number, because the mean of its divisors is an integer number (1886144760).

Almost surely, 2^28083404507 is an apocalyptic number.

28083404507 is a deficient number, since it is larger than the sum of its proper divisors (2094911653).

28083404507 is a wasteful number, since it uses less digits than its factorization.

28083404507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46310.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 28083404507 in words is "twenty-eight billion, eighty-three million, four hundred four thousand, five hundred seven".