64230748416 has 72 divisors (see below), whose sum is σ = 189941643360. Its totient is φ = 21410247168.

The previous prime is 64230748409. The next prime is 64230748441. The reversal of 64230748416 is 61484703246.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

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, 4639410 + ... + 4653233.

It is an arithmetic number, because the mean of its divisors is an integer number (2638078380).

Almost surely, 2^64230748416 is an apocalyptic number.

It is an amenable number.

64230748416 is an abundant number, since it is smaller than the sum of its proper divisors (125710894944).

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

64230748416 is an equidigital number, since it uses as much as digits as its factorization.

64230748416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292668 (or 9292648 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 64230748416 in words is "sixty-four billion, two hundred thirty million, seven hundred forty-eight thousand, four hundred sixteen".