117289562281 has 2 divisors, whose sum is σ = 117289562282. Its totient is φ = 117289562280.

The previous prime is 117289562267. The next prime is 117289562293. The reversal of 117289562281 is 182265982711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99909095056 + 17380467225 = 316084^2 + 131835^2 .

It is a cyclic number.

It is not a de Polignac number, because 117289562281 - 2¹³ = 117289554089 is a prime.

It is a super-2 number, since 2×117289562281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117289562251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58644781140 + 58644781141.

It is an arithmetic number, because the mean of its divisors is an integer number (58644781141).

Almost surely, 2^117289562281 is an apocalyptic number.

It is an amenable number.

117289562281 is a deficient number, since it is larger than the sum of its proper divisors (1).

117289562281 is an equidigital number, since it uses as much as digits as its factorization.

117289562281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 52.

The spelling of 117289562281 in words is "one hundred seventeen billion, two hundred eighty-nine million, five hundred sixty-two thousand, two hundred eighty-one".