6428064384 has 96 divisors (see below), whose sum is σ = 21139940640. Its totient is φ = 1836587520.

The previous prime is 6428064371. The next prime is 6428064389. The reversal of 6428064384 is 4834608246.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (6428064389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390502 + ... + 406629.

It is an arithmetic number, because the mean of its divisors is an integer number (220207715).

Almost surely, 2^6428064384 is an apocalyptic number.

6428064384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6428064384 is an abundant number, since it is smaller than the sum of its proper divisors (14711876256).

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

6428064384 is a wasteful number, since it uses less digits than its factorization.

6428064384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797158 (or 797143 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The square root of 6428064384 is about 80175.2105329322. The cubic root of 6428064384 is about 1859.3453957310.

The spelling of 6428064384 in words is "six billion, four hundred twenty-eight million, sixty-four thousand, three hundred eighty-four".