18236092913 has 2 divisors, whose sum is σ = 18236092914. Its totient is φ = 18236092912.

The previous prime is 18236092883. The next prime is 18236092921. The reversal of 18236092913 is 31929063281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14595539344 + 3640553569 = 120812^2 + 60337^2 .

It is a cyclic number.

It is not a de Polignac number, because 18236092913 - 2⁸ = 18236092657 is a prime.

It is not a weakly prime, because it can be changed into another prime (18236092943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9118046456 + 9118046457.

It is an arithmetic number, because the mean of its divisors is an integer number (9118046457).

Almost surely, 2^18236092913 is an apocalyptic number.

It is an amenable number.

18236092913 is a deficient number, since it is larger than the sum of its proper divisors (1).

18236092913 is an equidigital number, since it uses as much as digits as its factorization.

18236092913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 18236092913 in words is "eighteen billion, two hundred thirty-six million, ninety-two thousand, nine hundred thirteen".