18802415149 has 16 divisors (see below), whose sum is σ = 21600796672. Its totient is φ = 16032223728.

The previous prime is 18802415129. The next prime is 18802415161. The reversal of 18802415149 is 94151420881.

It is a cyclic number.

It is not a de Polignac number, because 18802415149 - 2⁹ = 18802414637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18802415129) 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, 2592322 + ... + 2599564.

It is an arithmetic number, because the mean of its divisors is an integer number (1350049792).

Almost surely, 2^18802415149 is an apocalyptic number.

It is an amenable number.

18802415149 is a deficient number, since it is larger than the sum of its proper divisors (2798381523).

18802415149 is a wasteful number, since it uses less digits than its factorization.

18802415149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9136.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 18802415149 in words is "eighteen billion, eight hundred two million, four hundred fifteen thousand, one hundred forty-nine".