115638333289 has 2 divisors, whose sum is σ = 115638333290. Its totient is φ = 115638333288.

The previous prime is 115638333277. The next prime is 115638333299. The reversal of 115638333289 is 982333836511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110968934400 + 4669398889 = 333120^2 + 68333^2 .

It is a cyclic number.

It is not a de Polignac number, because 115638333289 - 2¹³ = 115638325097 is a prime.

It is not a weakly prime, because it can be changed into another prime (115638333299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57819166644 + 57819166645.

It is an arithmetic number, because the mean of its divisors is an integer number (57819166645).

Almost surely, 2^115638333289 is an apocalyptic number.

It is an amenable number.

115638333289 is a deficient number, since it is larger than the sum of its proper divisors (1).

115638333289 is an equidigital number, since it uses as much as digits as its factorization.

115638333289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 52.

The spelling of 115638333289 in words is "one hundred fifteen billion, six hundred thirty-eight million, three hundred thirty-three thousand, two hundred eighty-nine".