85441368519 has 24 divisors (see below), whose sum is σ = 133279080480. Its totient is φ = 52432817472.

The previous prime is 85441368511. The next prime is 85441368601. The reversal of 85441368519 is 91586314458.

It is a happy number.

85441368519 is a `hidden beast` number, since 8 + 54 + 4 + 13 + 68 + 519 = 666.

It is not a de Polignac number, because 85441368519 - 2³ = 85441368511 is a prime.

It is a super-3 number, since 3×85441368519³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85441368511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 975084 + ... + 1059089.

It is an arithmetic number, because the mean of its divisors is an integer number (5553295020).

Almost surely, 2^85441368519 is an apocalyptic number.

85441368519 is a deficient number, since it is larger than the sum of its proper divisors (47837711961).

85441368519 is a wasteful number, since it uses less digits than its factorization.

85441368519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034551 (or 2034548 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The spelling of 85441368519 in words is "eighty-five billion, four hundred forty-one million, three hundred sixty-eight thousand, five hundred nineteen".