18349814192 has 10 divisors (see below), whose sum is σ = 35552765028. Its totient is φ = 9174907088.

The previous prime is 18349814183. The next prime is 18349814227. The reversal of 18349814192 is 29141894381.

It is a happy number.

It is a super-2 number, since 2×18349814192² (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 18349814192.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573431678 + ... + 573431709.

Almost surely, 2^18349814192 is an apocalyptic number.

It is an amenable number.

18349814192 is a deficient number, since it is larger than the sum of its proper divisors (17202950836).

18349814192 is a wasteful number, since it uses less digits than its factorization.

18349814192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146863395 (or 1146863389 counting only the distinct ones).

The product of its digits is 497664, while the sum is 50.

The spelling of 18349814192 in words is "eighteen billion, three hundred forty-nine million, eight hundred fourteen thousand, one hundred ninety-two".