64594449546 has 64 divisors (see below), whose sum is σ = 142274869632. Its totient is φ = 19549728000.

The previous prime is 64594449523. The next prime is 64594449641.

64594449546 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64594449546² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64594449546.

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 31 ways as a sum of consecutive naturals, for example, 7031076 + ... + 7040256.

It is an arithmetic number, because the mean of its divisors is an integer number (2223044838).

Almost surely, 2^64594449546 is an apocalyptic number.

64594449546 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 64594449546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71137434816).

64594449546 is an abundant number, since it is smaller than the sum of its proper divisors (77680420086).

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

64594449546 is a wasteful number, since it uses less digits than its factorization.

64594449546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100 (or 10078 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 60.

The spelling of 64594449546 in words is "sixty-four billion, five hundred ninety-four million, four hundred forty-nine thousand, five hundred forty-six".