18371768813 has 8 divisors (see below), whose sum is σ = 18466084416. Its totient is φ = 18277660800.

The previous prime is 18371768803. The next prime is 18371768873. The reversal of 18371768813 is 31886717381.

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 18371768813 - 2¹⁰ = 18371767789 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 (18371768803) 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, 127133 + ... + 230013.

It is an arithmetic number, because the mean of its divisors is an integer number (2308260552).

Almost surely, 2^18371768813 is an apocalyptic number.

It is an amenable number.

18371768813 is a deficient number, since it is larger than the sum of its proper divisors (94315603).

18371768813 is a wasteful number, since it uses less digits than its factorization.

18371768813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103795.

The product of its digits is 1354752, while the sum is 53.

The spelling of 18371768813 in words is "eighteen billion, three hundred seventy-one million, seven hundred sixty-eight thousand, eight hundred thirteen".