18494696901 has 32 divisors (see below), whose sum is σ = 26643715200. Its totient is φ = 11386448640.

The previous prime is 18494696867. The next prime is 18494696917. The reversal of 18494696901 is 10969649481.

It is not a de Polignac number, because 18494696901 - 2¹¹ = 18494694853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18494696981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141231 + ... + 238611.

It is an arithmetic number, because the mean of its divisors is an integer number (832616100).

Almost surely, 2^18494696901 is an apocalyptic number.

It is an amenable number.

18494696901 is a deficient number, since it is larger than the sum of its proper divisors (8149018299).

18494696901 is a wasteful number, since it uses less digits than its factorization.

18494696901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97509.

The product of its (nonzero) digits is 3359232, while the sum is 57.

The spelling of 18494696901 in words is "eighteen billion, four hundred ninety-four million, six hundred ninety-six thousand, nine hundred one".