85421255814 has 24 divisors (see below), whose sum is σ = 186777367920. Its totient is φ = 28212524208.

The previous prime is 85421255807. The next prime is 85421255827. The reversal of 85421255814 is 41855212458.

85421255814 is a `hidden beast` number, since 8 + 5 + 42 + 1 + 25 + 581 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 85421255814.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21766962 + ... + 21770885.

It is an arithmetic number, because the mean of its divisors is an integer number (7782390330).

Almost surely, 2^85421255814 is an apocalyptic number.

85421255814 is an abundant number, since it is smaller than the sum of its proper divisors (101356112106).

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

85421255814 is a wasteful number, since it uses less digits than its factorization.

85421255814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43537964 (or 43537961 counting only the distinct ones).

The product of its digits is 512000, while the sum is 45.

The spelling of 85421255814 in words is "eighty-five billion, four hundred twenty-one million, two hundred fifty-five thousand, eight hundred fourteen".