18270680434 has 16 divisors (see below), whose sum is σ = 27570143160. Its totient is φ = 9080709120.

The previous prime is 18270680353. The next prime is 18270680437. The reversal of 18270680434 is 43408607281.

It can be written as a sum of positive squares in 4 ways, for example, as 9798030225 + 8472650209 = 98985^2 + 92047^2 .

It is not an unprimeable number, because it can be changed into a prime (18270680437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479194 + ... + 515914.

Almost surely, 2^18270680434 is an apocalyptic number.

18270680434 is a deficient number, since it is larger than the sum of its proper divisors (9299462726).

18270680434 is a wasteful number, since it uses less digits than its factorization.

18270680434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38205.

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 18270680434 in words is "eighteen billion, two hundred seventy million, six hundred eighty thousand, four hundred thirty-four".