63722694444 has 24 divisors (see below), whose sum is σ = 149107504560. Its totient is φ = 21180724224.

The previous prime is 63722694421. The next prime is 63722694463. The reversal of 63722694444 is 44449622736.

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, 7517329 + ... + 7525800.

It is an arithmetic number, because the mean of its divisors is an integer number (6212812690).

Almost surely, 2^63722694444 is an apocalyptic number.

It is an amenable number.

63722694444 is an abundant number, since it is smaller than the sum of its proper divisors (85384810116).

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

63722694444 is a wasteful number, since it uses less digits than its factorization.

63722694444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15043489 (or 15043487 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 51.

The spelling of 63722694444 in words is "sixty-three billion, seven hundred twenty-two million, six hundred ninety-four thousand, four hundred forty-four".