28623836004 has 24 divisors (see below), whose sum is σ = 66835728960. Its totient is φ = 9534596064.

The previous prime is 28623835997. The next prime is 28623836009. The reversal of 28623836004 is 40063832682.

It is not an unprimeable number, because it can be changed into a prime (28623836009) 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, 817464 + ... + 851759.

It is an arithmetic number, because the mean of its divisors is an integer number (2784822040).

Almost surely, 2^28623836004 is an apocalyptic number.

It is an amenable number.

28623836004 is an abundant number, since it is smaller than the sum of its proper divisors (38211892956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28623836004 is a wasteful number, since it uses less digits than its factorization.

28623836004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670659 (or 1670657 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 28623836004 in words is "twenty-eight billion, six hundred twenty-three million, eight hundred thirty-six thousand, four".