18013876453 has 2 divisors, whose sum is σ = 18013876454. Its totient is φ = 18013876452.

The previous prime is 18013876429. The next prime is 18013876457. The reversal of 18013876453 is 35467831081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15281409924 + 2732466529 = 123618^2 + 52273^2 .

It is a cyclic number.

It is not a de Polignac number, because 18013876453 - 2⁹ = 18013875941 is a prime.

It is a super-2 number, since 2×18013876453² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18013876457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9006938226 + 9006938227.

It is an arithmetic number, because the mean of its divisors is an integer number (9006938227).

Almost surely, 2^18013876453 is an apocalyptic number.

It is an amenable number.

18013876453 is a deficient number, since it is larger than the sum of its proper divisors (1).

18013876453 is an equidigital number, since it uses as much as digits as its factorization.

18013876453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 18013876453 in words is "eighteen billion, thirteen million, eight hundred seventy-six thousand, four hundred fifty-three".