18827376845099 has 4 divisors (see below), whose sum is σ = 18827386163040. Its totient is φ = 18827367527160.

The previous prime is 18827376845083. The next prime is 18827376845131. The reversal of 18827376845099 is 99054867372881.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18827376845099 - 2⁴ = 18827376845083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18827376845399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215492 + ... + 6140129.

It is an arithmetic number, because the mean of its divisors is an integer number (4706846540760).

It is a 1-persistent number, because it is pandigital, but 2⋅18827376845099 = 37654753690198 is not.

Almost surely, 2^{18827376845099} is an apocalyptic number.

18827376845099 is a deficient number, since it is larger than the sum of its proper divisors (9317941).

18827376845099 is an equidigital number, since it uses as much as digits as its factorization.

18827376845099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9317940.

The product of its (nonzero) digits is 1463132160, while the sum is 77.

The spelling of 18827376845099 in words is "eighteen trillion, eight hundred twenty-seven billion, three hundred seventy-six million, eight hundred forty-five thousand, ninety-nine".