18105499292 has 12 divisors (see below), whose sum is σ = 31686255216. Its totient is φ = 9052283520.

The previous prime is 18105499267. The next prime is 18105499301. The reversal of 18105499292 is 29299450181.

It is a super-2 number, since 2×18105499292² (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 18105499292.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20309 + ... + 191372.

It is an arithmetic number, because the mean of its divisors is an integer number (2640521268).

Almost surely, 2^18105499292 is an apocalyptic number.

It is an amenable number.

18105499292 is a deficient number, since it is larger than the sum of its proper divisors (13580755924).

18105499292 is a wasteful number, since it uses less digits than its factorization.

18105499292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233068 (or 233066 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 18105499292 in words is "eighteen billion, one hundred five million, four hundred ninety-nine thousand, two hundred ninety-two".