9786166740 has 192 divisors, whose sum is σ = 35141137920. Its totient is φ = 2214604800.

The previous prime is 9786166697. The next prime is 9786166757. The reversal of 9786166740 is 476616879.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 368964 + ... + 394596.

It is an arithmetic number, because the mean of its divisors is an integer number (183026760).

Almost surely, 2^9786166740 is an apocalyptic number.

9786166740 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9786166740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17570568960).

9786166740 is an abundant number, since it is smaller than the sum of its proper divisors (25354971180).

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

9786166740 is a wasteful number, since it uses less digits than its factorization.

9786166740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25759 (or 25751 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 9786166740 is about 98925.0561789075. The cubic root of 9786166740 is about 2138.9675880125.

The spelling of 9786166740 in words is "nine billion, seven hundred eighty-six million, one hundred sixty-six thousand, seven hundred forty".