8086400680 has 32 divisors (see below), whose sum is σ = 18200428200. Its totient is φ = 3233488896.

The previous prime is 8086400677. The next prime is 8086400689. The reversal of 8086400680 is 860046808.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8073741316 + 12659364 = 89854^2 + 3558^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (8086400689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94864 + ... + 158656.

Almost surely, 2^8086400680 is an apocalyptic number.

It is an amenable number.

8086400680 is an abundant number, since it is smaller than the sum of its proper divisors (10114027520).

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

8086400680 is a wasteful number, since it uses less digits than its factorization.

8086400680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66973 (or 66969 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 8086400680 is about 89924.4164840673. The cubic root of 8086400680 is about 2007.1742906714.

The spelling of 8086400680 in words is "eight billion, eighty-six million, four hundred thousand, six hundred eighty".