64864574712432 has 360 divisors, whose sum is σ = 207113163409152. Its totient is φ = 19637954202240.

The previous prime is 64864574712419. The next prime is 64864574712433. The reversal of 64864574712432 is 23421747546846.

64864574712432 is a `hidden beast` number, since 6 + 4 + 8 + 6 + 4 + 574 + 7 + 1 + 24 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 64864574712432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64864574712433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 518841643 + ... + 518966645.

Almost surely, 2^{64864574712432} 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 64864574712432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103556581704576).

64864574712432 is an abundant number, since it is smaller than the sum of its proper divisors (142248588696720).

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

64864574712432 is a wasteful number, since it uses less digits than its factorization.

64864574712432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126151 (or 126122 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 63.

The spelling of 64864574712432 in words is "sixty-four trillion, eight hundred sixty-four billion, five hundred seventy-four million, seven hundred twelve thousand, four hundred thirty-two".