85389416287 has 16 divisors (see below), whose sum is σ = 97979779072. Its totient is φ = 72897200640.

The previous prime is 85389416279. The next prime is 85389416309. The reversal of 85389416287 is 78261498358.

It is a cyclic number.

It is not a de Polignac number, because 85389416287 - 2³ = 85389416279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85389416237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8385343 + ... + 8395519.

It is an arithmetic number, because the mean of its divisors is an integer number (6123736192).

Almost surely, 2^85389416287 is an apocalyptic number.

85389416287 is a deficient number, since it is larger than the sum of its proper divisors (12590362785).

85389416287 is a wasteful number, since it uses less digits than its factorization.

85389416287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14878.

The product of its digits is 23224320, while the sum is 61.

The spelling of 85389416287 in words is "eighty-five billion, three hundred eighty-nine million, four hundred sixteen thousand, two hundred eighty-seven".