18740485533 has 64 divisors (see below), whose sum is σ = 32775966720. Its totient is φ = 9240998400.

The previous prime is 18740485529. The next prime is 18740485541. The reversal of 18740485533 is 33558404781.

It is not a de Polignac number, because 18740485533 - 2² = 18740485529 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18740485553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 323688 + ... + 377166.

It is an arithmetic number, because the mean of its divisors is an integer number (512124480).

Almost surely, 2^18740485533 is an apocalyptic number.

It is an amenable number.

18740485533 is a deficient number, since it is larger than the sum of its proper divisors (14035481187).

18740485533 is a wasteful number, since it uses less digits than its factorization.

18740485533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53578.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 18740485533 in words is "eighteen billion, seven hundred forty million, four hundred eighty-five thousand, five hundred thirty-three".