9785383377889 has 64 divisors (see below), whose sum is σ = 11782208684032. Its totient is φ = 7950630297600.

The previous prime is 9785383377823. The next prime is 9785383377907. The reversal of 9785383377889 is 9887733835879.

It is a happy number.

It is not a de Polignac number, because 9785383377889 - 2²¹ = 9785381280737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9785383347889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5601248914 + ... + 5601250660.

It is an arithmetic number, because the mean of its divisors is an integer number (184097010688).

Almost surely, 2^{9785383377889} is an apocalyptic number.

It is an amenable number.

9785383377889 is a deficient number, since it is larger than the sum of its proper divisors (1996825306143).

9785383377889 is a wasteful number, since it uses less digits than its factorization.

9785383377889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366.

The product of its digits is 15362887680, while the sum is 85.

The spelling of 9785383377889 in words is "nine trillion, seven hundred eighty-five billion, three hundred eighty-three million, three hundred seventy-seven thousand, eight hundred eighty-nine".