85722286429 has 8 divisors (see below), whose sum is σ = 97746679800. Its totient is φ = 74473660416.

The previous prime is 85722286417. The next prime is 85722286439. The reversal of 85722286429 is 92468222758.

It can be written as a sum of positive squares in 4 ways, for example, as 2735080804 + 82987205625 = 52298^2 + 288075^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85722286429 - 2⁹ = 85722285917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85722286429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85722286439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193941604 + ... + 193942045.

It is an arithmetic number, because the mean of its divisors is an integer number (12218334975).

Almost surely, 2^85722286429 is an apocalyptic number.

It is an amenable number.

85722286429 is a deficient number, since it is larger than the sum of its proper divisors (12024393371).

85722286429 is a wasteful number, since it uses less digits than its factorization.

85722286429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387883679.

The product of its digits is 7741440, while the sum is 55.

The spelling of 85722286429 in words is "eighty-five billion, seven hundred twenty-two million, two hundred eighty-six thousand, four hundred twenty-nine".