86688286957 has 2 divisors, whose sum is σ = 86688286958. Its totient is φ = 86688286956.

The previous prime is 86688286931. The next prime is 86688286963. The reversal of 86688286957 is 75968288668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78307067556 + 8381219401 = 279834^2 + 91549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86688286957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86688286957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86688286907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43344143478 + 43344143479.

It is an arithmetic number, because the mean of its divisors is an integer number (43344143479).

Almost surely, 2^86688286957 is an apocalyptic number.

It is an amenable number.

86688286957 is a deficient number, since it is larger than the sum of its proper divisors (1).

86688286957 is an equidigital number, since it uses as much as digits as its factorization.

86688286957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 557383680, while the sum is 73.

The spelling of 86688286957 in words is "eighty-six billion, six hundred eighty-eight million, two hundred eighty-six thousand, nine hundred fifty-seven".