18182738192 has 10 divisors (see below), whose sum is σ = 35229055278. Its totient is φ = 9091369088.

The previous prime is 18182738149. The next prime is 18182738201. The reversal of 18182738192 is 29183728181.

It can be written as a sum of positive squares in only one way, i.e., 14809916416 + 3372821776 = 121696^2 + 58076^2 .

It is a super-2 number, since 2×18182738192² (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 18182738192.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568210553 + ... + 568210584.

Almost surely, 2^18182738192 is an apocalyptic number.

It is an amenable number.

18182738192 is a deficient number, since it is larger than the sum of its proper divisors (17046317086).

18182738192 is a wasteful number, since it uses less digits than its factorization.

18182738192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136421145 (or 1136421139 counting only the distinct ones).

The product of its digits is 387072, while the sum is 50.

The spelling of 18182738192 in words is "eighteen billion, one hundred eighty-two million, seven hundred thirty-eight thousand, one hundred ninety-two".