18553313740049 has 16 divisors (see below), whose sum is σ = 20342280384000. Its totient is φ = 16781549506560.

The previous prime is 18553313740033. The next prime is 18553313740057. The reversal of 18553313740049 is 94004731335581.

It is a cyclic number.

It is not a de Polignac number, because 18553313740049 - 2⁴ = 18553313740033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18553313740099) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1362674 + ... + 6242075.

It is an arithmetic number, because the mean of its divisors is an integer number (1271392524000).

Almost surely, 2^{18553313740049} is an apocalyptic number.

It is an amenable number.

18553313740049 is a deficient number, since it is larger than the sum of its proper divisors (1788966643951).

18553313740049 is a wasteful number, since it uses less digits than its factorization.

18553313740049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7605880.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 18553313740049 in words is "eighteen trillion, five hundred fifty-three billion, three hundred thirteen million, seven hundred forty thousand, forty-nine".