9782768086 has 32 divisors (see below), whose sum is σ = 18314892288. Its totient is φ = 3815592480.

The previous prime is 9782768081. The next prime is 9782768113. The reversal of 9782768086 is 6808672879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9782768081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365610 + ... + 391453.

It is an arithmetic number, because the mean of its divisors is an integer number (572340384).

Almost surely, 2^9782768086 is an apocalyptic number.

9782768086 is a deficient number, since it is larger than the sum of its proper divisors (8532124202).

9782768086 is a wasteful number, since it uses less digits than its factorization.

9782768086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757156.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The square root of 9782768086 is about 98907.8767641890. The cubic root of 9782768086 is about 2138.7199441473.

The spelling of 9782768086 in words is "nine billion, seven hundred eighty-two million, seven hundred sixty-eight thousand, eighty-six".