64307444318 has 48 divisors (see below), whose sum is σ = 106561242576. Its totient is φ = 29082493440.

The previous prime is 64307444303. The next prime is 64307444329. The reversal of 64307444318 is 81344470346.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17392646 + ... + 17396342.

It is an arithmetic number, because the mean of its divisors is an integer number (2220025887).

Almost surely, 2^64307444318 is an apocalyptic number.

64307444318 is a deficient number, since it is larger than the sum of its proper divisors (42253798258).

64307444318 is a wasteful number, since it uses less digits than its factorization.

64307444318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749 (or 4736 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 64307444318 in words is "sixty-four billion, three hundred seven million, four hundred forty-four thousand, three hundred eighteen".