64103475584 has 64 divisors (see below), whose sum is σ = 134903976000. Its totient is φ = 30257183232.

The previous prime is 64103475539. The next prime is 64103475587. The reversal of 64103475584 is 48557430146.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64103475587) 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 7 ways as a sum of consecutive naturals, for example, 641687 + ... + 734825.

It is an arithmetic number, because the mean of its divisors is an integer number (2107874625).

Almost surely, 2^64103475584 is an apocalyptic number.

64103475584 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 64103475584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67451988000).

64103475584 is an abundant number, since it is smaller than the sum of its proper divisors (70800500416).

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

64103475584 is a wasteful number, since it uses less digits than its factorization.

64103475584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93455 (or 93443 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 64103475584 in words is "sixty-four billion, one hundred three million, four hundred seventy-five thousand, five hundred eighty-four".