64295331584 has 72 divisors (see below), whose sum is σ = 141580398960. Its totient is φ = 28896665600.

The previous prime is 64295331553. The next prime is 64295331587. The reversal of 64295331584 is 48513359246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64295331587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122354 + ... + 378894.

It is an arithmetic number, because the mean of its divisors is an integer number (1966394430).

Almost surely, 2^64295331584 is an apocalyptic number.

64295331584 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64295331584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70790199480).

64295331584 is an abundant number, since it is smaller than the sum of its proper divisors (77285067376).

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

64295331584 is a wasteful number, since it uses less digits than its factorization.

64295331584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256657 (or 256643 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 50.

The spelling of 64295331584 in words is "sixty-four billion, two hundred ninety-five million, three hundred thirty-one thousand, five hundred eighty-four".