18853158413 has 2 divisors, whose sum is σ = 18853158414. Its totient is φ = 18853158412.

The previous prime is 18853158293. The next prime is 18853158427. The reversal of 18853158413 is 31485135881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18095092324 + 758066089 = 134518^2 + 27533^2 .

It is an emirp because it is prime and its reverse (31485135881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18853158413 - 2¹⁶ = 18853092877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18853158473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9426579206 + 9426579207.

It is an arithmetic number, because the mean of its divisors is an integer number (9426579207).

Almost surely, 2^18853158413 is an apocalyptic number.

It is an amenable number.

18853158413 is a deficient number, since it is larger than the sum of its proper divisors (1).

18853158413 is an equidigital number, since it uses as much as digits as its factorization.

18853158413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 47.

The spelling of 18853158413 in words is "eighteen billion, eight hundred fifty-three million, one hundred fifty-eight thousand, four hundred thirteen".