64263322884 has 12 divisors (see below), whose sum is σ = 149947753424. Its totient is φ = 21421107624.

The previous prime is 64263322867. The next prime is 64263322889. The reversal of 64263322884 is 48822336246.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (64263322889) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2677638442 + ... + 2677638465.

Almost surely, 2^64263322884 is an apocalyptic number.

It is an amenable number.

64263322884 is an abundant number, since it is smaller than the sum of its proper divisors (85684430540).

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

64263322884 is a wasteful number, since it uses less digits than its factorization.

64263322884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355276914 (or 5355276912 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 48.

The spelling of 64263322884 in words is "sixty-four billion, two hundred sixty-three million, three hundred twenty-two thousand, eight hundred eighty-four".