64361244880608 has 48 divisors (see below), whose sum is σ = 181944288416016. Its totient is φ = 19803459962880.

The previous prime is 64361244880601. The next prime is 64361244880609. The reversal of 64361244880608 is 80608844216346.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64361244880601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25785753913 + ... + 25785756408.

It is an arithmetic number, because the mean of its divisors is an integer number (3790506008667).

Almost surely, 2^{64361244880608} is an apocalyptic number.

It is an amenable number.

64361244880608 is an abundant number, since it is smaller than the sum of its proper divisors (117583043535408).

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

64361244880608 is a wasteful number, since it uses less digits than its factorization.

64361244880608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51571510347 (or 51571510339 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 60.

The spelling of 64361244880608 in words is "sixty-four trillion, three hundred sixty-one billion, two hundred forty-four million, eight hundred eighty thousand, six hundred eight".