64785544422 has 16 divisors (see below), whose sum is σ = 129574287360. Its totient is φ = 21594648392.

The previous prime is 64785544319. The next prime is 64785544441. The reversal of 64785544422 is 22444558746.

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 7 ways as a sum of consecutive naturals, for example, 190579 + ... + 407297.

It is an arithmetic number, because the mean of its divisors is an integer number (8098392960).

Almost surely, 2^64785544422 is an apocalyptic number.

64785544422 is an abundant number, since it is smaller than the sum of its proper divisors (64788742938).

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

64785544422 is a wasteful number, since it uses less digits than its factorization.

64785544422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266547.

The product of its digits is 8601600, while the sum is 51.

The spelling of 64785544422 in words is "sixty-four billion, seven hundred eighty-five million, five hundred forty-four thousand, four hundred twenty-two".