64052323985 has 8 divisors (see below), whose sum is σ = 82775311080. Its totient is φ = 47300177664.

The previous prime is 64052323961. The next prime is 64052324053. The reversal of 64052323985 is 58932325046.

It can be written as a sum of positive squares in 4 ways, for example, as 6616846336 + 57435477649 = 81344^2 + 239657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64052323985 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 492710120 + ... + 492710249.

It is an arithmetic number, because the mean of its divisors is an integer number (10346913885).

Almost surely, 2^64052323985 is an apocalyptic number.

64052323985 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64052323985 is a deficient number, since it is larger than the sum of its proper divisors (18722987095).

64052323985 is a wasteful number, since it uses less digits than its factorization.

64052323985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985420387.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 64052323985 in words is "sixty-four billion, fifty-two million, three hundred twenty-three thousand, nine hundred eighty-five".