64805388524643 has 8 divisors (see below), whose sum is σ = 93053891214928. Its totient is φ = 39880239092064.

The previous prime is 64805388524563. The next prime is 64805388524689. The reversal of 64805388524643 is 34642588350846.

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

It is not a de Polignac number, because 64805388524643 - 2⁹ = 64805388524131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64805388524743) 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, 830838314380 + ... + 830838314457.

It is an arithmetic number, because the mean of its divisors is an integer number (11631736401866).

Almost surely, 2^{64805388524643} is an apocalyptic number.

64805388524643 is a deficient number, since it is larger than the sum of its proper divisors (28248502690285).

64805388524643 is a wasteful number, since it uses less digits than its factorization.

64805388524643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661676628853.

The product of its (nonzero) digits is 530841600, while the sum is 66.

The spelling of 64805388524643 in words is "sixty-four trillion, eight hundred five billion, three hundred eighty-eight million, five hundred twenty-four thousand, six hundred forty-three".