28270334018 has 16 divisors (see below), whose sum is σ = 42528353400. Its totient is φ = 14094259200.

The previous prime is 28270334017. The next prime is 28270334021. The reversal of 28270334018 is 81043307282.

It can be written as a sum of positive squares in 4 ways, for example, as 27824575249 + 445758769 = 166807^2 + 21113^2 .

It is not an unprimeable number, because it can be changed into a prime (28270334017) 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, 1445948 + ... + 1465368.

Almost surely, 2^28270334018 is an apocalyptic number.

28270334018 is a deficient number, since it is larger than the sum of its proper divisors (14258019382).

28270334018 is a wasteful number, since it uses less digits than its factorization.

28270334018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21493.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 28270334018 in words is "twenty-eight billion, two hundred seventy million, three hundred thirty-four thousand, eighteen".