18365181883 has 8 divisors (see below), whose sum is σ = 18527550048. Its totient is φ = 18203437824.

The previous prime is 18365181881. The next prime is 18365181941. The reversal of 18365181883 is 38818156381.

It is a happy number.

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 18365181883 - 2¹ = 18365181881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18365181883.

It is not an unprimeable number, because it can be changed into a prime (18365181881) 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, 96816 + ... + 214717.

It is an arithmetic number, because the mean of its divisors is an integer number (2315943756).

Almost surely, 2^18365181883 is an apocalyptic number.

18365181883 is a deficient number, since it is larger than the sum of its proper divisors (162368165).

18365181883 is a wasteful number, since it uses less digits than its factorization.

18365181883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312053.

The product of its digits is 1105920, while the sum is 52.

The spelling of 18365181883 in words is "eighteen billion, three hundred sixty-five million, one hundred eighty-one thousand, eight hundred eighty-three".