28056311418 has 16 divisors (see below), whose sum is σ = 57063684960. Its totient is φ = 9193593456.

The previous prime is 28056311417. The next prime is 28056311441. The reversal of 28056311418 is 81411365082.

It is a super-2 number, since 2×28056311418² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28056311417) 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, 39627205 + ... + 39627912.

It is an arithmetic number, because the mean of its divisors is an integer number (3566480310).

Almost surely, 2^28056311418 is an apocalyptic number.

28056311418 is an abundant number, since it is smaller than the sum of its proper divisors (29007373542).

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

28056311418 is a wasteful number, since it uses less digits than its factorization.

28056311418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79255181.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 28056311418 in words is "twenty-eight billion, fifty-six million, three hundred eleven thousand, four hundred eighteen".