18985330265049 has 8 divisors (see below), whose sum is σ = 28126415207520. Its totient is φ = 12656886843348.

The previous prime is 18985330265047. The next prime is 18985330265051. The reversal of 18985330265049 is 94056203358981.

18985330265049 is a `hidden beast` number, since 1 + 8 + 9 + 8 + 533 + 0 + 2 + 6 + 50 + 49 = 666.

It is an interprime number because it is at equal distance from previous prime (18985330265047) and next prime (18985330265051).

It is not a de Polignac number, because 18985330265049 - 2¹ = 18985330265047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18985330265047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351580190067 + ... + 351580190120.

It is an arithmetic number, because the mean of its divisors is an integer number (3515801900940).

Almost surely, 2^{18985330265049} is an apocalyptic number.

It is an amenable number.

18985330265049 is a deficient number, since it is larger than the sum of its proper divisors (9141084942471).

18985330265049 is an equidigital number, since it uses as much as digits as its factorization.

18985330265049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703160380196 (or 703160380190 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 18985330265049 in words is "eighteen trillion, nine hundred eighty-five billion, three hundred thirty million, two hundred sixty-five thousand, forty-nine".