1693141657189 has 2 divisors, whose sum is σ = 1693141657190. Its totient is φ = 1693141657188.

The previous prime is 1693141657187. The next prime is 1693141657217. The reversal of 1693141657189 is 9817561413961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1390925390625 + 302216266564 = 1179375^2 + 549742^2 .

It is a cyclic number.

It is not a de Polignac number, because 1693141657189 - 2¹ = 1693141657187 is a prime.

It is a super-3 number, since 3×1693141657189³ (a number of 38 digits) contains 333 as substring.

Together with 1693141657187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1693141657187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 846570828594 + 846570828595.

It is an arithmetic number, because the mean of its divisors is an integer number (846570828595).

Almost surely, 2^{1693141657189} is an apocalyptic number.

It is an amenable number.

1693141657189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1693141657189 is an equidigital number, since it uses as much as digits as its factorization.

1693141657189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 61.

The spelling of 1693141657189 in words is "one trillion, six hundred ninety-three billion, one hundred forty-one million, six hundred fifty-seven thousand, one hundred eighty-nine".