33897836117 has 2 divisors, whose sum is σ = 33897836118. Its totient is φ = 33897836116.

The previous prime is 33897836113. The next prime is 33897836177. The reversal of 33897836117 is 71163879833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30206787601 + 3691048516 = 173801^2 + 60754^2 .

It is an emirp because it is prime and its reverse (71163879833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33897836117 - 2² = 33897836113 is a prime.

It is a super-2 number, since 2×33897836117² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33897836113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16948918058 + 16948918059.

It is an arithmetic number, because the mean of its divisors is an integer number (16948918059).

Almost surely, 2^33897836117 is an apocalyptic number.

It is an amenable number.

33897836117 is a deficient number, since it is larger than the sum of its proper divisors (1).

33897836117 is an equidigital number, since it uses as much as digits as its factorization.

33897836117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The spelling of 33897836117 in words is "thirty-three billion, eight hundred ninety-seven million, eight hundred thirty-six thousand, one hundred seventeen".