18202048815 has 32 divisors (see below), whose sum is σ = 30236645376. Its totient is φ = 9340260480.

The previous prime is 18202048789. The next prime is 18202048817. The reversal of 18202048815 is 51884020281.

It is not a de Polignac number, because 18202048815 - 2⁵ = 18202048783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18202048817) 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, 32689 + ... + 193578.

It is an arithmetic number, because the mean of its divisors is an integer number (944895168).

Almost surely, 2^18202048815 is an apocalyptic number.

18202048815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18202048815 is a deficient number, since it is larger than the sum of its proper divisors (12034596561).

18202048815 is a wasteful number, since it uses less digits than its factorization.

18202048815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226479.

The product of its (nonzero) digits is 40960, while the sum is 39.

The spelling of 18202048815 in words is "eighteen billion, two hundred two million, forty-eight thousand, eight hundred fifteen".