1833509341861 has 2 divisors, whose sum is σ = 1833509341862. Its totient is φ = 1833509341860.

The previous prime is 1833509341843. The next prime is 1833509341889. The reversal of 1833509341861 is 1681439053381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1504915562500 + 328593779361 = 1226750^2 + 573231^2 .

It is a cyclic number.

It is not a de Polignac number, because 1833509341861 - 2¹¹ = 1833509339813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1833509341799 and 1833509341808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1833509341661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916754670930 + 916754670931.

It is an arithmetic number, because the mean of its divisors is an integer number (916754670931).

Almost surely, 2^{1833509341861} is an apocalyptic number.

It is an amenable number.

1833509341861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1833509341861 is an equidigital number, since it uses as much as digits as its factorization.

1833509341861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 1833509341861 in words is "one trillion, eight hundred thirty-three billion, five hundred nine million, three hundred forty-one thousand, eight hundred sixty-one".