868267966831 has 2 divisors, whose sum is σ = 868267966832. Its totient is φ = 868267966830.

The previous prime is 868267966799. The next prime is 868267966837. The reversal of 868267966831 is 138669762868.

868267966831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868267966831 - 2⁵ = 868267966799 is a prime.

It is a super-2 number, since 2×868267966831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868267966837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434133983415 + 434133983416.

It is an arithmetic number, because the mean of its divisors is an integer number (434133983416).

Almost surely, 2^868267966831 is an apocalyptic number.

868267966831 is a deficient number, since it is larger than the sum of its proper divisors (1).

868267966831 is an equidigital number, since it uses as much as digits as its factorization.

868267966831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 250822656, while the sum is 70.

The spelling of 868267966831 in words is "eight hundred sixty-eight billion, two hundred sixty-seven million, nine hundred sixty-six thousand, eight hundred thirty-one".