18494785946875 has 96 divisors (see below), whose sum is σ = 27743814282240. Its totient is φ = 12053424240000.

The previous prime is 18494785946873. The next prime is 18494785946957. The reversal of 18494785946875 is 57864958749481.

It is not a de Polignac number, because 18494785946875 - 2¹ = 18494785946873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18494785946792 and 18494785946801.

It is not an unprimeable number, because it can be changed into a prime (18494785946873) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 78873556 + ... + 79107694.

It is an arithmetic number, because the mean of its divisors is an integer number (288998065440).

Almost surely, 2^{18494785946875} is an apocalyptic number.

18494785946875 is a deficient number, since it is larger than the sum of its proper divisors (9249028335365).

18494785946875 is an equidigital number, since it uses as much as digits as its factorization.

18494785946875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234351 (or 234331 counting only the distinct ones).

The product of its digits is 19508428800, while the sum is 85.

The spelling of 18494785946875 in words is "eighteen trillion, four hundred ninety-four billion, seven hundred eighty-five million, nine hundred forty-six thousand, eight hundred seventy-five".