18291911102 has 8 divisors (see below), whose sum is σ = 27438488616. Its totient is φ = 9145748232.

The previous prime is 18291911087. The next prime is 18291911123. The reversal of 18291911102 is 20111919281.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 55508 + ... + 199160.

It is an arithmetic number, because the mean of its divisors is an integer number (3429811077).

Almost surely, 2^18291911102 is an apocalyptic number.

18291911102 is a deficient number, since it is larger than the sum of its proper divisors (9146577514).

18291911102 is a wasteful number, since it uses less digits than its factorization.

18291911102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207322.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 18291911102 in words is "eighteen billion, two hundred ninety-one million, nine hundred eleven thousand, one hundred two".