18126433033 has 2 divisors, whose sum is σ = 18126433034. Its totient is φ = 18126433032.

The previous prime is 18126433007. The next prime is 18126433049. The reversal of 18126433033 is 33033462181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17590186384 + 536246649 = 132628^2 + 23157^2 .

It is a cyclic number.

It is not a de Polignac number, because 18126433033 - 2⁹ = 18126432521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18126433033.

It is not a weakly prime, because it can be changed into another prime (18126434033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9063216516 + 9063216517.

It is an arithmetic number, because the mean of its divisors is an integer number (9063216517).

Almost surely, 2^18126433033 is an apocalyptic number.

It is an amenable number.

18126433033 is a deficient number, since it is larger than the sum of its proper divisors (1).

18126433033 is an equidigital number, since it uses as much as digits as its factorization.

18126433033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 18126433033 in words is "eighteen billion, one hundred twenty-six million, four hundred thirty-three thousand, thirty-three".