18270656354 has 16 divisors (see below), whose sum is σ = 27701683128. Its totient is φ = 9036851712.

The previous prime is 18270656353. The next prime is 18270656359. The reversal of 18270656354 is 45365607281.

It can be written as a sum of positive squares in 4 ways, for example, as 16958550625 + 1312105729 = 130225^2 + 36223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18270656299 and 18270656308.

It is not an unprimeable number, because it can be changed into a prime (18270656353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408044 + ... + 450600.

Almost surely, 2^18270656354 is an apocalyptic number.

18270656354 is a deficient number, since it is larger than the sum of its proper divisors (9431026774).

18270656354 is a wasteful number, since it uses less digits than its factorization.

18270656354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44869.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 18270656354 in words is "eighteen billion, two hundred seventy million, six hundred fifty-six thousand, three hundred fifty-four".