6459718320 has 120 divisors (see below), whose sum is σ = 23666087952. Its totient is φ = 1565990400.

The previous prime is 6459718313. The next prime is 6459718357. The reversal of 6459718320 is 238179546.

6459718320 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

6459718320 is strictly pandigital in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 399891 + ... + 415730.

It is a 1-persistent number, because it is pandigital, but 2⋅6459718320 = 12919436640 is not.

Almost surely, 2^6459718320 is an apocalyptic number.

6459718320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6459718320 is an abundant number, since it is smaller than the sum of its proper divisors (17206369632).

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

6459718320 is a wasteful number, since it uses less digits than its factorization.

6459718320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815651 (or 815642 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 6459718320 is about 80372.3728653074. The cubic root of 6459718320 is about 1862.3924122649.

The spelling of 6459718320 in words is "six billion, four hundred fifty-nine million, seven hundred eighteen thousand, three hundred twenty".