18686883337 has 16 divisors (see below), whose sum is σ = 19387952640. Its totient is φ = 17996573952.

The previous prime is 18686883277. The next prime is 18686883343. The reversal of 18686883337 is 73338868681.

It is not a de Polignac number, because 18686883337 - 2¹¹ = 18686881289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18686883367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3605614 + ... + 3610792.

It is an arithmetic number, because the mean of its divisors is an integer number (1211747040).

Almost surely, 2^18686883337 is an apocalyptic number.

It is an amenable number.

18686883337 is a deficient number, since it is larger than the sum of its proper divisors (701069303).

18686883337 is a wasteful number, since it uses less digits than its factorization.

18686883337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192.

The product of its digits is 27869184, while the sum is 61.

The spelling of 18686883337 in words is "eighteen billion, six hundred eighty-six million, eight hundred eighty-three thousand, three hundred thirty-seven".