18292919111 has 16 divisors (see below), whose sum is σ = 18579805920. Its totient is φ = 18008476800.

The previous prime is 18292919041. The next prime is 18292919137. The reversal of 18292919111 is 11191929281.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18292919111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18292909111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18347465 + ... + 18348461.

It is an arithmetic number, because the mean of its divisors is an integer number (1161237870).

Almost surely, 2^18292919111 is an apocalyptic number.

18292919111 is a deficient number, since it is larger than the sum of its proper divisors (286886809).

18292919111 is a wasteful number, since it uses less digits than its factorization.

18292919111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954.

The product of its digits is 23328, while the sum is 44.

The spelling of 18292919111 in words is "eighteen billion, two hundred ninety-two million, nine hundred nineteen thousand, one hundred eleven".