18852042363613 has 8 divisors (see below), whose sum is σ = 19214658149688. Its totient is φ = 18489682758144.

The previous prime is 18852042363503. The next prime is 18852042363619. The reversal of 18852042363613 is 31636324025881.

It can be written as a sum of positive squares in 4 ways, for example, as 2037433647769 + 16814608715844 = 1427387^2 + 4100562^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18852042363613 - 2²¹ = 18852040266461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18852042363619) 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, 63896556 + ... + 64190917.

It is an arithmetic number, because the mean of its divisors is an integer number (2401832268711).

Almost surely, 2^{18852042363613} is an apocalyptic number.

It is an amenable number.

18852042363613 is a deficient number, since it is larger than the sum of its proper divisors (362615786075).

18852042363613 is a wasteful number, since it uses less digits than its factorization.

18852042363613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128090303.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 18852042363613 in words is "eighteen trillion, eight hundred fifty-two billion, forty-two million, three hundred sixty-three thousand, six hundred thirteen".