986941781788 has 12 divisors (see below), whose sum is σ = 1727636175720. Its totient is φ = 493331445872.

The previous prime is 986941781753. The next prime is 986941781789. The reversal of 986941781788 is 887187149689.

986941781788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986941781789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34845331 + ... + 34873642.

It is an arithmetic number, because the mean of its divisors is an integer number (143969681310).

Almost surely, 2^986941781788 is an apocalyptic number.

It is an amenable number.

986941781788 is a deficient number, since it is larger than the sum of its proper divisors (740694393932).

986941781788 is a wasteful number, since it uses less digits than its factorization.

986941781788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69722516 (or 69722514 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 76.

The spelling of 986941781788 in words is "nine hundred eighty-six billion, nine hundred forty-one million, seven hundred eighty-one thousand, seven hundred eighty-eight".