1836180347117 has 2 divisors, whose sum is σ = 1836180347118. Its totient is φ = 1836180347116.

The previous prime is 1836180347051. The next prime is 1836180347129. The reversal of 1836180347117 is 7117430816381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1828388048041 + 7792299076 = 1352179^2 + 88274^2 .

It is a cyclic number.

It is not a de Polignac number, because 1836180347117 - 2¹⁶ = 1836180281581 is a prime.

It is a super-2 number, since 2×1836180347117² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1836180347017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 918090173558 + 918090173559.

It is an arithmetic number, because the mean of its divisors is an integer number (918090173559).

Almost surely, 2^{1836180347117} is an apocalyptic number.

It is an amenable number.

1836180347117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1836180347117 is an equidigital number, since it uses as much as digits as its factorization.

1836180347117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 1836180347117 in words is "one trillion, eight hundred thirty-six billion, one hundred eighty million, three hundred forty-seven thousand, one hundred seventeen".