18090240929 has 16 divisors (see below), whose sum is σ = 18787745280. Its totient is φ = 17400096000.

The previous prime is 18090240901. The next prime is 18090240941. The reversal of 18090240929 is 92904209081.

It is a cyclic number.

It is not a de Polignac number, because 18090240929 - 2¹⁶ = 18090175393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18090240929.

It is not an unprimeable number, because it can be changed into a prime (18090240029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6598499 + ... + 6601239.

It is an arithmetic number, because the mean of its divisors is an integer number (1174234080).

Almost surely, 2^18090240929 is an apocalyptic number.

It is an amenable number.

18090240929 is a deficient number, since it is larger than the sum of its proper divisors (697504351).

18090240929 is a wasteful number, since it uses less digits than its factorization.

18090240929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 18090240929 in words is "eighteen billion, ninety million, two hundred forty thousand, nine hundred twenty-nine".