985789706577 has 16 divisors (see below), whose sum is σ = 1416701767488. Its totient is φ = 606121738560.

The previous prime is 985789706563. The next prime is 985789706579. The reversal of 985789706577 is 775607987589.

It is not a de Polignac number, because 985789706577 - 2³⁶ = 917070229841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (985789706579) 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, 10747098 + ... + 10838435.

It is an arithmetic number, because the mean of its divisors is an integer number (88543860468).

Almost surely, 2^985789706577 is an apocalyptic number.

It is an amenable number.

985789706577 is a deficient number, since it is larger than the sum of its proper divisors (430912060911).

985789706577 is a wasteful number, since it uses less digits than its factorization.

985789706577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21586720.

The product of its (nonzero) digits is 1867017600, while the sum is 78.

The spelling of 985789706577 in words is "nine hundred eighty-five billion, seven hundred eighty-nine million, seven hundred six thousand, five hundred seventy-seven".