8451564086 has 32 divisors (see below), whose sum is σ = 14833632000. Its totient is φ = 3535884576.

The previous prime is 8451564071. The next prime is 8451564089. The reversal of 8451564086 is 6804651548.

It is a self number, because there is not a number n which added to its sum of digits gives 8451564086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451564089) 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 15 ways as a sum of consecutive naturals, for example, 1652345 + ... + 1657451.

It is an arithmetic number, because the mean of its divisors is an integer number (463551000).

Almost surely, 2^8451564086 is an apocalyptic number.

8451564086 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

8451564086 is a deficient number, since it is larger than the sum of its proper divisors (6382067914).

8451564086 is a wasteful number, since it uses less digits than its factorization.

8451564086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908.

The product of its (nonzero) digits is 921600, while the sum is 47.

The square root of 8451564086 is about 91932.3886668893. The cubic root of 8451564086 is about 2036.9437194461.

The spelling of 8451564086 in words is "eight billion, four hundred fifty-one million, five hundred sixty-four thousand, eighty-six".