85490847319 has 4 divisors (see below), whose sum is σ = 85492151280. Its totient is φ = 85489543360.

The previous prime is 85490847289. The next prime is 85490847329. The reversal of 85490847319 is 91374809458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85490847319 - 2⁵ = 85490847287 is a prime.

It is a super-2 number, since 2×85490847319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85490847329) 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 3 ways as a sum of consecutive naturals, for example, 548122 + ... + 686599.

It is an arithmetic number, because the mean of its divisors is an integer number (21373037820).

Almost surely, 2^85490847319 is an apocalyptic number.

85490847319 is a deficient number, since it is larger than the sum of its proper divisors (1303961).

85490847319 is a wasteful number, since it uses less digits than its factorization.

85490847319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303960.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 85490847319 in words is "eighty-five billion, four hundred ninety million, eight hundred forty-seven thousand, three hundred nineteen".