985887000765 has 24 divisors (see below), whose sum is σ = 1708893987840. Its totient is φ = 525799266144.

The previous prime is 985887000739. The next prime is 985887000781. The reversal of 985887000765 is 567000788589.

It is not a de Polignac number, because 985887000765 - 2¹⁸ = 985886738621 is a prime.

It is a super-2 number, since 2×985887000765² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5999284 + ... + 6161426.

It is an arithmetic number, because the mean of its divisors is an integer number (71203916160).

Almost surely, 2^985887000765 is an apocalyptic number.

It is an amenable number.

985887000765 is a deficient number, since it is larger than the sum of its proper divisors (723006987075).

985887000765 is a wasteful number, since it uses less digits than its factorization.

985887000765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297273 (or 297270 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 63.

The spelling of 985887000765 in words is "nine hundred eighty-five billion, eight hundred eighty-seven million, seven hundred sixty-five", and thus it is an aban number.