18126253199 has 2 divisors, whose sum is σ = 18126253200. Its totient is φ = 18126253198.

The previous prime is 18126253183. The next prime is 18126253253. The reversal of 18126253199 is 99135262181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18126253199 - 2⁴ = 18126253183 is a prime.

It is a super-2 number, since 2×18126253199² (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 (18126253109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9063126599 + 9063126600.

It is an arithmetic number, because the mean of its divisors is an integer number (9063126600).

Almost surely, 2^18126253199 is an apocalyptic number.

18126253199 is a deficient number, since it is larger than the sum of its proper divisors (1).

18126253199 is an equidigital number, since it uses as much as digits as its factorization.

18126253199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 47.

The spelling of 18126253199 in words is "eighteen billion, one hundred twenty-six million, two hundred fifty-three thousand, one hundred ninety-nine".