18813959675552 has 24 divisors (see below), whose sum is σ = 37044555894612. Its totient is φ = 9405818496000.

The previous prime is 18813959675551. The next prime is 18813959675659. The reversal of 18813959675552 is 25557695931881.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14389853212816 + 4424106462736 = 3793396^2 + 2103356^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18813959675552.

It is not an unprimeable number, because it can be changed into a prime (18813959675551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36028649 + ... + 36547112.

Almost surely, 2^{18813959675552} is an apocalyptic number.

It is an amenable number.

18813959675552 is a deficient number, since it is larger than the sum of its proper divisors (18230596219060).

18813959675552 is an equidigital number, since it uses as much as digits as its factorization.

18813959675552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72583872 (or 72583864 counting only the distinct ones).

The product of its digits is 816480000, while the sum is 74.

The spelling of 18813959675552 in words is "eighteen trillion, eight hundred thirteen billion, nine hundred fifty-nine million, six hundred seventy-five thousand, five hundred fifty-two".