868388999963 has 2 divisors, whose sum is σ = 868388999964. Its totient is φ = 868388999962.

The previous prime is 868388999957. The next prime is 868388999999. The reversal of 868388999963 is 369999883868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868388999963 - 2²⁴ = 868372222747 is a prime.

It is not a weakly prime, because it can be changed into another prime (868388999923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434194499981 + 434194499982.

It is an arithmetic number, because the mean of its divisors is an integer number (434194499982).

Almost surely, 2^868388999963 is an apocalyptic number.

868388999963 is a deficient number, since it is larger than the sum of its proper divisors (1).

868388999963 is an equidigital number, since it uses as much as digits as its factorization.

868388999963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8707129344, while the sum is 86.

The spelling of 868388999963 in words is "eight hundred sixty-eight billion, three hundred eighty-eight million, nine hundred ninety-nine thousand, nine hundred sixty-three".