18055742694 has 36 divisors (see below), whose sum is σ = 39700750572. Its totient is φ = 5470340040.

The previous prime is 18055742681. The next prime is 18055742717. The reversal of 18055742694 is 49624755081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3618069 + ... + 3623055.

It is an arithmetic number, because the mean of its divisors is an integer number (1102798627).

Almost surely, 2^18055742694 is an apocalyptic number.

18055742694 is an abundant number, since it is smaller than the sum of its proper divisors (21645007878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18055742694 is an frugal number, since it uses more digits than its factorization.

18055742694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001 (or 5003 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 18055742694 in words is "eighteen billion, fifty-five million, seven hundred forty-two thousand, six hundred ninety-four".