18549907326746 has 16 divisors (see below), whose sum is σ = 29290414289760. Its totient is φ = 8786472127920.

The previous prime is 18549907326701. The next prime is 18549907326751. The reversal of 18549907326746 is 64762370994581.

It is a self number, because there is not a number n which added to its sum of digits gives 18549907326746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8018765 + ... + 10069776.

It is an arithmetic number, because the mean of its divisors is an integer number (1830650893110).

It is a 3-persistent number, because k⋅18549907326746 is pandigital for 1 ≤ k ≤ 3, but not for k = 4.

Almost surely, 2^{18549907326746} is an apocalyptic number.

18549907326746 is a deficient number, since it is larger than the sum of its proper divisors (10740506963014).

18549907326746 is a wasteful number, since it uses less digits than its factorization.

18549907326746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18115549.

The product of its (nonzero) digits is 548674560, while the sum is 71.

The spelling of 18549907326746 in words is "eighteen trillion, five hundred forty-nine billion, nine hundred seven million, three hundred twenty-six thousand, seven hundred forty-six".