61136888863117 has 2 divisors, whose sum is σ = 61136888863118. Its totient is φ = 61136888863116.

The previous prime is 61136888863049. The next prime is 61136888863151. The reversal of 61136888863117 is 71136888863116.

61136888863117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55768126453636 + 5368762409481 = 7467806^2 + 2317059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61136888863117 is a prime.

It is a super-2 number, since 2×61136888863117² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61136888863157) 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, 30568444431558 + 30568444431559.

It is an arithmetic number, because the mean of its divisors is an integer number (30568444431559).

Almost surely, 2^{61136888863117} is an apocalyptic number.

It is an amenable number.

61136888863117 is a deficient number, since it is larger than the sum of its proper divisors (1).

61136888863117 is an equidigital number, since it uses as much as digits as its factorization.

61136888863117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55738368, while the sum is 67.

Subtracting 61136888863117 from its reverse (71136888863116), we obtain a palindrome (9999999999999).

The spelling of 61136888863117 in words is "sixty-one trillion, one hundred thirty-six billion, eight hundred eighty-eight million, eight hundred sixty-three thousand, one hundred seventeen".