6464201420 has 24 divisors (see below), whose sum is σ = 13649829648. Its totient is φ = 2571393600.

The previous prime is 6464201389. The next prime is 6464201423. The reversal of 6464201420 is 241024646.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6464201423) 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, 889226 + ... + 896465.

It is an arithmetic number, because the mean of its divisors is an integer number (568742902).

Almost surely, 2^6464201420 is an apocalyptic number.

It is an amenable number.

6464201420 is an abundant number, since it is smaller than the sum of its proper divisors (7185628228).

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

6464201420 is a wasteful number, since it uses less digits than its factorization.

6464201420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785881 (or 1785879 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 6464201420 is about 80400.2575866520. The cubic root of 6464201420 is about 1862.8231514118.

The spelling of 6464201420 in words is "six billion, four hundred sixty-four million, two hundred one thousand, four hundred twenty".