64463312592 has 480 divisors, whose sum is σ = 224321356800. Its totient is φ = 17651063808.

The previous prime is 64463312579. The next prime is 64463312623. The reversal of 64463312592 is 29521336446.

64463312592 is a `hidden beast` number, since 6 + 4 + 4 + 633 + 1 + 2 + 5 + 9 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 106199553 + ... + 106200159.

It is an arithmetic number, because the mean of its divisors is an integer number (467336160).

Almost surely, 2^64463312592 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 64463312592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112160678400).

64463312592 is an abundant number, since it is smaller than the sum of its proper divisors (159858044208).

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

64463312592 is a wasteful number, since it uses less digits than its factorization.

64463312592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 821 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The spelling of 64463312592 in words is "sixty-four billion, four hundred sixty-three million, three hundred twelve thousand, five hundred ninety-two".