264340861188967 has 2 divisors, whose sum is σ = 264340861188968. Its totient is φ = 264340861188966.

The previous prime is 264340861188961. The next prime is 264340861188997. The reversal of 264340861188967 is 769881168043462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264340861188967 - 2³⁹ = 263791105375079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264340861188967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264340861188961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132170430594483 + 132170430594484.

It is an arithmetic number, because the mean of its divisors is an integer number (132170430594484).

Almost surely, 2^{264340861188967} is an apocalyptic number.

264340861188967 is a deficient number, since it is larger than the sum of its proper divisors (1).

264340861188967 is an equidigital number, since it uses as much as digits as its factorization.

264340861188967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 668860416, while the sum is 73.

The spelling of 264340861188967 in words is "two hundred sixty-four trillion, three hundred forty billion, eight hundred sixty-one million, one hundred eighty-eight thousand, nine hundred sixty-seven".