1898322074227 has 2 divisors, whose sum is σ = 1898322074228. Its totient is φ = 1898322074226.

The previous prime is 1898322074221. The next prime is 1898322074251. The reversal of 1898322074227 is 7224702238981.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1898322074227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1898322074221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 949161037113 + 949161037114.

It is an arithmetic number, because the mean of its divisors is an integer number (949161037114).

Almost surely, 2^{1898322074227} is an apocalyptic number.

1898322074227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1898322074227 is an equidigital number, since it uses as much as digits as its factorization.

1898322074227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 1898322074227 in words is "one trillion, eight hundred ninety-eight billion, three hundred twenty-two million, seventy-four thousand, two hundred twenty-seven".