1818192838291 has 2 divisors, whose sum is σ = 1818192838292. Its totient is φ = 1818192838290.

The previous prime is 1818192838277. The next prime is 1818192838337. The reversal of 1818192838291 is 1928382918181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1818192838291 - 2²⁵ = 1818159283859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1818192838261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 909096419145 + 909096419146.

It is an arithmetic number, because the mean of its divisors is an integer number (909096419146).

Almost surely, 2^{1818192838291} is an apocalyptic number.

1818192838291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1818192838291 is an equidigital number, since it uses as much as digits as its factorization.

1818192838291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 61.

The spelling of 1818192838291 in words is "one trillion, eight hundred eighteen billion, one hundred ninety-two million, eight hundred thirty-eight thousand, two hundred ninety-one".