18802050215 has 12 divisors (see below), whose sum is σ = 24431540904. Its totient is φ = 13884590304.

The previous prime is 18802050161. The next prime is 18802050227. The reversal of 18802050215 is 51205020881.

It is a happy number.

It is not a de Polignac number, because 18802050215 - 2⁶ = 18802050151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11124629 + ... + 11126318.

It is an arithmetic number, because the mean of its divisors is an integer number (2035961742).

Almost surely, 2^18802050215 is an apocalyptic number.

18802050215 is a deficient number, since it is larger than the sum of its proper divisors (5629490689).

18802050215 is a wasteful number, since it uses less digits than its factorization.

18802050215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22250978 (or 22250965 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The spelling of 18802050215 in words is "eighteen billion, eight hundred two million, fifty thousand, two hundred fifteen".