6388462664 has 32 divisors (see below), whose sum is σ = 12548304000. Its totient is φ = 3045037632.

The previous prime is 6388462649. The next prime is 6388462669. The reversal of 6388462664 is 4662648836.

It is not an unprimeable number, because it can be changed into a prime (6388462669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155954 + ... + 192609.

It is an arithmetic number, because the mean of its divisors is an integer number (392134500).

Almost surely, 2^6388462664 is an apocalyptic number.

It is an amenable number.

6388462664 is a deficient number, since it is larger than the sum of its proper divisors (6159841336).

6388462664 is a wasteful number, since it uses less digits than its factorization.

6388462664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348677 (or 348673 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 53.

The square root of 6388462664 is about 79927.8591230867. The cubic root of 6388462664 is about 1855.5192046637.

The spelling of 6388462664 in words is "six billion, three hundred eighty-eight million, four hundred sixty-two thousand, six hundred sixty-four".