85744729199 has 2 divisors, whose sum is σ = 85744729200. Its totient is φ = 85744729198.

The previous prime is 85744729153. The next prime is 85744729207. The reversal of 85744729199 is 99192744758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85744729199 - 2³² = 81449761903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85744729099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42872364599 + 42872364600.

It is an arithmetic number, because the mean of its divisors is an integer number (42872364600).

Almost surely, 2^85744729199 is an apocalyptic number.

85744729199 is a deficient number, since it is larger than the sum of its proper divisors (1).

85744729199 is an equidigital number, since it uses as much as digits as its factorization.

85744729199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 65.

The spelling of 85744729199 in words is "eighty-five billion, seven hundred forty-four million, seven hundred twenty-nine thousand, one hundred ninety-nine".