1693841587241 has 2 divisors, whose sum is σ = 1693841587242. Its totient is φ = 1693841587240.

The previous prime is 1693841587181. The next prime is 1693841587271. The reversal of 1693841587241 is 1427851483961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1652307147241 + 41534440000 = 1285421^2 + 203800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1693841587241 - 2¹⁸ = 1693841325097 is a prime.

It is a super-2 number, since 2×1693841587241² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1693841587271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 846920793620 + 846920793621.

It is an arithmetic number, because the mean of its divisors is an integer number (846920793621).

Almost surely, 2^{1693841587241} is an apocalyptic number.

It is an amenable number.

1693841587241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1693841587241 is an equidigital number, since it uses as much as digits as its factorization.

1693841587241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11612160, while the sum is 59.

The spelling of 1693841587241 in words is "one trillion, six hundred ninety-three billion, eight hundred forty-one million, five hundred eighty-seven thousand, two hundred forty-one".