85840091316 has 72 divisors (see below), whose sum is σ = 254684743040. Its totient is φ = 23862879936.

The previous prime is 85840091221. The next prime is 85840091339. The reversal of 85840091316 is 61319004858.

It is a super-4 number, since 4×85840091316⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4593856 + ... + 4612503.

Almost surely, 2^85840091316 is an apocalyptic number.

It is an amenable number.

85840091316 is an abundant number, since it is smaller than the sum of its proper divisors (168844651724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85840091316 is a wasteful number, since it uses less digits than its factorization.

85840091316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9206413 (or 9206408 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 85840091316 in words is "eighty-five billion, eight hundred forty million, ninety-one thousand, three hundred sixteen".