4640400064 has 14 divisors (see below), whose sum is σ = 9208294004. Its totient is φ = 2320200000.

The previous prime is 4640400043. The next prime is 4640400067. The reversal of 4640400064 is 4600040464.

It is not an unprimeable number, because it can be changed into a prime (4640400067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36253062 + ... + 36253189.

It is an arithmetic number, because the mean of its divisors is an integer number (657735286).

Almost surely, 2^4640400064 is an apocalyptic number.

It is an amenable number.

4640400064 is a deficient number, since it is larger than the sum of its proper divisors (4567893940).

4640400064 is an equidigital number, since it uses as much as digits as its factorization.

4640400064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72506263 (or 72506253 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 4640400064 is about 68120.4819712838. The cubic root of 4640400064 is about 1667.9581178250.

The spelling of 4640400064 in words is "four billion, six hundred forty million, four hundred thousand, sixty-four".