18136696334 has 16 divisors (see below), whose sum is σ = 27989485200. Its totient is φ = 8807730624.

The previous prime is 18136696321. The next prime is 18136696337. The reversal of 18136696334 is 43369663181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18136696337) 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, 173264 + ... + 257475.

It is an arithmetic number, because the mean of its divisors is an integer number (1749342825).

Almost surely, 2^18136696334 is an apocalyptic number.

18136696334 is a deficient number, since it is larger than the sum of its proper divisors (9852788866).

18136696334 is a wasteful number, since it uses less digits than its factorization.

18136696334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431347.

The product of its digits is 1679616, while the sum is 50.

The spelling of 18136696334 in words is "eighteen billion, one hundred thirty-six million, six hundred ninety-six thousand, three hundred thirty-four".