1834998378011 has 2 divisors, whose sum is σ = 1834998378012. Its totient is φ = 1834998378010.

The previous prime is 1834998377977. The next prime is 1834998378049. The reversal of 1834998378011 is 1108738994381.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1834998378011 - 2¹⁴ = 1834998361627 is a prime.

It is a super-2 number, since 2×1834998378011² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1834998378211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917499189005 + 917499189006.

It is an arithmetic number, because the mean of its divisors is an integer number (917499189006).

Almost surely, 2^{1834998378011} is an apocalyptic number.

1834998378011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1834998378011 is an equidigital number, since it uses as much as digits as its factorization.

1834998378011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 62.

The spelling of 1834998378011 in words is "one trillion, eight hundred thirty-four billion, nine hundred ninety-eight million, three hundred seventy-eight thousand, eleven".