6464254255420 has 288 divisors, whose sum is σ = 16024225351680. Its totient is φ = 2181123210240.

The previous prime is 6464254255397. The next prime is 6464254255463. The reversal of 6464254255420 is 245524524646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 631084819 + ... + 631095061.

It is an arithmetic number, because the mean of its divisors is an integer number (55639671360).

Almost surely, 2^{6464254255420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6464254255420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8012112675840).

6464254255420 is an abundant number, since it is smaller than the sum of its proper divisors (9559971096260).

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

6464254255420 is a wasteful number, since it uses less digits than its factorization.

6464254255420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645 (or 10630 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 49.

The spelling of 6464254255420 in words is "six trillion, four hundred sixty-four billion, two hundred fifty-four million, two hundred fifty-five thousand, four hundred twenty".