9786669297894 has 48 divisors (see below), whose sum is σ = 22262127593472. Its totient is φ = 3101243810544.

The previous prime is 9786669297887. The next prime is 9786669297919. The reversal of 9786669297894 is 4987929666879.

9786669297894 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72445702 + ... + 72580665.

It is an arithmetic number, because the mean of its divisors is an integer number (463794324864).

Almost surely, 2^{9786669297894} is an apocalyptic number.

9786669297894 is an abundant number, since it is smaller than the sum of its proper divisors (12475458295578).

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

9786669297894 is a wasteful number, since it uses less digits than its factorization.

9786669297894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145026561 (or 145026558 counting only the distinct ones).

The product of its digits is 35554111488, while the sum is 90.

The spelling of 9786669297894 in words is "nine trillion, seven hundred eighty-six billion, six hundred sixty-nine million, two hundred ninety-seven thousand, eight hundred ninety-four".