18254316381313 has 4 divisors (see below), whose sum is σ = 18366306052528. Its totient is φ = 18142326710100.

The previous prime is 18254316381311. The next prime is 18254316381377. The reversal of 18254316381313 is 31318361345281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18254316381313 - 2¹ = 18254316381311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18254316381311) 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, 55994835363 + ... + 55994835688.

It is an arithmetic number, because the mean of its divisors is an integer number (4591576513132).

Almost surely, 2^{18254316381313} is an apocalyptic number.

It is an amenable number.

18254316381313 is a deficient number, since it is larger than the sum of its proper divisors (111989671215).

18254316381313 is a wasteful number, since it uses less digits than its factorization.

18254316381313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111989671214.

The product of its digits is 1244160, while the sum is 49.

The spelling of 18254316381313 in words is "eighteen trillion, two hundred fifty-four billion, three hundred sixteen million, three hundred eighty-one thousand, three hundred thirteen".