6414387720 has 64 divisors (see below), whose sum is σ = 20723411520. Its totient is φ = 1578925824.

The previous prime is 6414387677. The next prime is 6414387731. The reversal of 6414387720 is 277834146.

It is a super-2 number, since 2×6414387720² = 82288739644973596800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054334 + ... + 2057453.

It is an arithmetic number, because the mean of its divisors is an integer number (323803305).

Almost surely, 2^6414387720 is an apocalyptic number.

6414387720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6414387720 is an abundant number, since it is smaller than the sum of its proper divisors (14309023800).

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

6414387720 is a wasteful number, since it uses less digits than its factorization.

6414387720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111814 (or 4111810 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 6414387720 is about 80089.8727680348. The cubic root of 6414387720 is about 1858.0257813452.

The spelling of 6414387720 in words is "six billion, four hundred fourteen million, three hundred eighty-seven thousand, seven hundred twenty".