8582678640 has 60 divisors (see below), whose sum is σ = 28823498184. Its totient is φ = 2288714112.

The previous prime is 8582678623. The next prime is 8582678641. The reversal of 8582678640 is 468762858.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8582678641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5959474 + ... + 5960913.

Almost surely, 2^8582678640 is an apocalyptic number.

8582678640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8582678640 is an abundant number, since it is smaller than the sum of its proper divisors (20240819544).

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

8582678640 is a wasteful number, since it uses less digits than its factorization.

8582678640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11920406 (or 11920397 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The square root of 8582678640 is about 92642.7473685879. The cubic root of 8582678640 is about 2047.4231863019.

The spelling of 8582678640 in words is "eight billion, five hundred eighty-two million, six hundred seventy-eight thousand, six hundred forty".