64532956284 has 240 divisors, whose sum is σ = 189198713088. Its totient is φ = 19073843712.

The previous prime is 64532956283. The next prime is 64532956289. The reversal of 64532956284 is 48265923546.

64532956284 is a `hidden beast` number, since 6 + 4 + 5 + 3 + 2 + 9 + 5 + 628 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 64532956284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64532956283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8484027 + ... + 8491629.

Almost surely, 2^64532956284 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 64532956284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94599356544).

64532956284 is an abundant number, since it is smaller than the sum of its proper divisors (124665756804).

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

64532956284 is a wasteful number, since it uses less digits than its factorization.

64532956284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726 (or 7715 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The spelling of 64532956284 in words is "sixty-four billion, five hundred thirty-two million, nine hundred fifty-six thousand, two hundred eighty-four".