85622668543 has 2 divisors, whose sum is σ = 85622668544. Its totient is φ = 85622668542.

The previous prime is 85622668489. The next prime is 85622668591. The reversal of 85622668543 is 34586622658.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85622668543 - 2²⁹ = 85085797631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85622668343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42811334271 + 42811334272.

It is an arithmetic number, because the mean of its divisors is an integer number (42811334272).

Almost surely, 2^85622668543 is an apocalyptic number.

85622668543 is a deficient number, since it is larger than the sum of its proper divisors (1).

85622668543 is an equidigital number, since it uses as much as digits as its factorization.

85622668543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16588800, while the sum is 55.

The spelling of 85622668543 in words is "eighty-five billion, six hundred twenty-two million, six hundred sixty-eight thousand, five hundred forty-three".