7864660822219 has 2 divisors, whose sum is σ = 7864660822220. Its totient is φ = 7864660822218.

The previous prime is 7864660822129. The next prime is 7864660822241. The reversal of 7864660822219 is 9122280664687.

Together with previous prime (7864660822129) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7864660822219 - 2¹⁵ = 7864660789451 is a prime.

It is a super-2 number, since 2×7864660822219² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7864660852219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932330411109 + 3932330411110.

It is an arithmetic number, because the mean of its divisors is an integer number (3932330411110).

Almost surely, 2^{7864660822219} is an apocalyptic number.

7864660822219 is a deficient number, since it is larger than the sum of its proper divisors (1).

7864660822219 is an equidigital number, since it uses as much as digits as its factorization.

7864660822219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 7864660822219 in words is "seven trillion, eight hundred sixty-four billion, six hundred sixty million, eight hundred twenty-two thousand, two hundred nineteen".