84622716593 has 2 divisors, whose sum is σ = 84622716594. Its totient is φ = 84622716592.

The previous prime is 84622716571. The next prime is 84622716599. The reversal of 84622716593 is 39561722648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76467181729 + 8155534864 = 276527^2 + 90308^2 .

It is a cyclic number.

It is not a de Polignac number, because 84622716593 - 2⁸ = 84622716337 is a prime.

It is a super-2 number, since 2×84622716593² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (84622716599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42311358296 + 42311358297.

It is an arithmetic number, because the mean of its divisors is an integer number (42311358297).

Almost surely, 2^84622716593 is an apocalyptic number.

It is an amenable number.

84622716593 is a deficient number, since it is larger than the sum of its proper divisors (1).

84622716593 is an equidigital number, since it uses as much as digits as its factorization.

84622716593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 53.

The spelling of 84622716593 in words is "eighty-four billion, six hundred twenty-two million, seven hundred sixteen thousand, five hundred ninety-three".