28118408704 has 40 divisors (see below), whose sum is σ = 57700367208. Its totient is φ = 13679216640.

The previous prime is 28118408701. The next prime is 28118408749. The reversal of 28118408704 is 40780481182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28118408701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723202 + ... + 761089.

Almost surely, 2^28118408704 is an apocalyptic number.

It is an amenable number.

28118408704 is an abundant number, since it is smaller than the sum of its proper divisors (29581958504).

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

28118408704 is an equidigital number, since it uses as much as digits as its factorization.

28118408704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484346 (or 1484330 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 43.

Adding to 28118408704 its reverse (40780481182), we get a palindrome (68898889886).

The spelling of 28118408704 in words is "twenty-eight billion, one hundred eighteen million, four hundred eight thousand, seven hundred four".