64488444805 has 16 divisors (see below), whose sum is σ = 78626930688. Its totient is φ = 50766352000.

The previous prime is 64488444799. The next prime is 64488444871. The reversal of 64488444805 is 50844488446.

It is not a de Polignac number, because 64488444805 - 2⁷ = 64488444677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10620 + ... + 359290.

It is an arithmetic number, because the mean of its divisors is an integer number (4914183168).

Almost surely, 2^64488444805 is an apocalyptic number.

It is an amenable number.

64488444805 is a deficient number, since it is larger than the sum of its proper divisors (14138485883).

64488444805 is a wasteful number, since it uses less digits than its factorization.

64488444805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349268.

The product of its (nonzero) digits is 15728640, while the sum is 55.

The spelling of 64488444805 in words is "sixty-four billion, four hundred eighty-eight million, four hundred forty-four thousand, eight hundred five".