18783155309092 has 24 divisors (see below), whose sum is σ = 33041739931200. Its totient is φ = 9342670777440.

The previous prime is 18783155309069. The next prime is 18783155309123. The reversal of 18783155309092 is 29090355138781.

It is a self number, because there is not a number n which added to its sum of digits gives 18783155309092.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4411659 + ... + 7551757.

It is an arithmetic number, because the mean of its divisors is an integer number (1376739163800).

Almost surely, 2^{18783155309092} is an apocalyptic number.

It is an amenable number.

18783155309092 is a deficient number, since it is larger than the sum of its proper divisors (14258584622108).

18783155309092 is a wasteful number, since it uses less digits than its factorization.

18783155309092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147891 (or 3147889 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 18783155309092 in words is "eighteen trillion, seven hundred eighty-three billion, one hundred fifty-five million, three hundred nine thousand, ninety-two".