86688286837 has 2 divisors, whose sum is σ = 86688286838. Its totient is φ = 86688286836.

The previous prime is 86688286793. The next prime is 86688286843. The reversal of 86688286837 is 73868288668.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85202107236 + 1486179601 = 291894^2 + 38551^2 .

It is a cyclic number.

It is not a de Polignac number, because 86688286837 - 2²³ = 86679898229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86688286037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43344143418 + 43344143419.

It is an arithmetic number, because the mean of its divisors is an integer number (43344143419).

Almost surely, 2^86688286837 is an apocalyptic number.

It is an amenable number.

86688286837 is a deficient number, since it is larger than the sum of its proper divisors (1).

86688286837 is an equidigital number, since it uses as much as digits as its factorization.

86688286837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 297271296, while the sum is 70.

The spelling of 86688286837 in words is "eighty-six billion, six hundred eighty-eight million, two hundred eighty-six thousand, eight hundred thirty-seven".