85144719359 has 8 divisors (see below), whose sum is σ = 97317147648. Its totient is φ = 72974515320.

The previous prime is 85144719313. The next prime is 85144719389. The reversal of 85144719359 is 95391744158.

It is a happy number.

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

It is not a de Polignac number, because 85144719359 - 2⁸ = 85144719103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85144719389) 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 in 7 ways as a sum of consecutive naturals, for example, 473207 + ... + 627864.

It is an arithmetic number, because the mean of its divisors is an integer number (12164643456).

Almost surely, 2^85144719359 is an apocalyptic number.

85144719359 is a deficient number, since it is larger than the sum of its proper divisors (12172428289).

85144719359 is a wasteful number, since it uses less digits than its factorization.

85144719359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112125.

The product of its digits is 5443200, while the sum is 56.

The spelling of 85144719359 in words is "eighty-five billion, one hundred forty-four million, seven hundred nineteen thousand, three hundred fifty-nine".