18234705903 has 32 divisors (see below), whose sum is σ = 25865205696. Its totient is φ = 11387271168.

The previous prime is 18234705901. The next prime is 18234705913. The reversal of 18234705903 is 30950743281.

It is not a de Polignac number, because 18234705903 - 2¹ = 18234705901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18234705901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16682625 + ... + 16683717.

It is an arithmetic number, because the mean of its divisors is an integer number (808287678).

Almost surely, 2^18234705903 is an apocalyptic number.

18234705903 is a deficient number, since it is larger than the sum of its proper divisors (7630499793).

18234705903 is a wasteful number, since it uses less digits than its factorization.

18234705903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 18234705903 in words is "eighteen billion, two hundred thirty-four million, seven hundred five thousand, nine hundred three".