18642536530004 has 24 divisors (see below), whose sum is σ = 32979723691656. Its totient is φ = 9219939120000.

The previous prime is 18642536529949. The next prime is 18642536530049. The reversal of 18642536530004 is 40003563524681.

It can be written as a sum of positive squares in 4 ways, for example, as 2735616760900 + 15906919769104 = 1653970^2 + 3988348^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22185407 + ... + 23010374.

It is an arithmetic number, because the mean of its divisors is an integer number (1374155153819).

Almost surely, 2^{18642536530004} is an apocalyptic number.

It is an amenable number.

18642536530004 is a deficient number, since it is larger than the sum of its proper divisors (14337187161652).

18642536530004 is a wasteful number, since it uses less digits than its factorization.

18642536530004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45196907 (or 45196905 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 18642536530004 in words is "eighteen trillion, six hundred forty-two billion, five hundred thirty-six million, five hundred thirty thousand, four".