64535459384 has 48 divisors (see below), whose sum is σ = 133534782360. Its totient is φ = 29217320000.

The previous prime is 64535459383. The next prime is 64535459419. The reversal of 64535459384 is 48395453546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64535459383) 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 11 ways as a sum of consecutive naturals, for example, 110162 + ... + 375774.

Almost surely, 2^64535459384 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 64535459384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66767391180).

64535459384 is an abundant number, since it is smaller than the sum of its proper divisors (68999322976).

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

64535459384 is a wasteful number, since it uses less digits than its factorization.

64535459384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265892 (or 265877 counting only the distinct ones).

The product of its digits is 31104000, while the sum is 56.

The spelling of 64535459384 in words is "sixty-four billion, five hundred thirty-five million, four hundred fifty-nine thousand, three hundred eighty-four".