18932244086 has 8 divisors (see below), whose sum is σ = 32455275600. Its totient is φ = 8113818888.

The previous prime is 18932244083. The next prime is 18932244151. The reversal of 18932244086 is 68044223981.

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

It is a super-2 number, since 2×18932244086² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18932244086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18932244083) 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, 676151561 + ... + 676151588.

It is an arithmetic number, because the mean of its divisors is an integer number (4056909450).

Almost surely, 2^18932244086 is an apocalyptic number.

18932244086 is a deficient number, since it is larger than the sum of its proper divisors (13523031514).

18932244086 is a wasteful number, since it uses less digits than its factorization.

18932244086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352303158.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 18932244086 in words is "eighteen billion, nine hundred thirty-two million, two hundred forty-four thousand, eighty-six".