868788271097 has 2 divisors, whose sum is σ = 868788271098. Its totient is φ = 868788271096.

The previous prime is 868788271081. The next prime is 868788271129. The reversal of 868788271097 is 790172887868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640785841081 + 228002430016 = 800491^2 + 477496^2 .

It is a cyclic number.

It is not a de Polignac number, because 868788271097 - 2⁴ = 868788271081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 868788271097.

It is not a weakly prime, because it can be changed into another prime (868788271067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434394135548 + 434394135549.

It is an arithmetic number, because the mean of its divisors is an integer number (434394135549).

Almost surely, 2^868788271097 is an apocalyptic number.

It is an amenable number.

868788271097 is a deficient number, since it is larger than the sum of its proper divisors (1).

868788271097 is an equidigital number, since it uses as much as digits as its factorization.

868788271097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151732224, while the sum is 71.

The spelling of 868788271097 in words is "eight hundred sixty-eight billion, seven hundred eighty-eight million, two hundred seventy-one thousand, ninety-seven".