6464521334574 has 24 divisors (see below), whose sum is σ = 14067626493960. Its totient is φ = 2145430659888.

The previous prime is 6464521334561. The next prime is 6464521334611. The reversal of 6464521334574 is 4754331254646.

6464521334574 is a `hidden beast` number, since 6 + 4 + 6 + 4 + 52 + 13 + 3 + 4 + 574 = 666.

It is a super-2 number, since 2×6464521334574² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6464521334574.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 784144512 + ... + 784152755.

It is an arithmetic number, because the mean of its divisors is an integer number (586151103915).

Almost surely, 2^{6464521334574} is an apocalyptic number.

6464521334574 is an abundant number, since it is smaller than the sum of its proper divisors (7603105159386).

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

6464521334574 is a wasteful number, since it uses less digits than its factorization.

6464521334574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568297504 (or 1568297501 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 54.

The spelling of 6464521334574 in words is "six trillion, four hundred sixty-four billion, five hundred twenty-one million, three hundred thirty-four thousand, five hundred seventy-four".