865735381967 has 2 divisors, whose sum is σ = 865735381968. Its totient is φ = 865735381966.

The previous prime is 865735381939. The next prime is 865735381981. The reversal of 865735381967 is 769183537568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 865735381967 - 2⁸ = 865735381711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 865735381897 and 865735381906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (865735383967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432867690983 + 432867690984.

It is an arithmetic number, because the mean of its divisors is an integer number (432867690984).

Almost surely, 2^865735381967 is an apocalyptic number.

865735381967 is a deficient number, since it is larger than the sum of its proper divisors (1).

865735381967 is an equidigital number, since it uses as much as digits as its factorization.

865735381967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 228614400, while the sum is 68.

The spelling of 865735381967 in words is "eight hundred sixty-five billion, seven hundred thirty-five million, three hundred eighty-one thousand, nine hundred sixty-seven".