63972843428 has 24 divisors (see below), whose sum is σ = 120621849600. Its totient is φ = 29511810720.

The previous prime is 63972843419. The next prime is 63972843457. The reversal of 63972843428 is 82434827936.

63972843428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183908 + ... + 402203.

It is an arithmetic number, because the mean of its divisors is an integer number (5025910400).

Almost surely, 2^63972843428 is an apocalyptic number.

It is an amenable number.

63972843428 is a deficient number, since it is larger than the sum of its proper divisors (56649006172).

63972843428 is a wasteful number, since it uses less digits than its factorization.

63972843428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588227 (or 588225 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 56.

The spelling of 63972843428 in words is "sixty-three billion, nine hundred seventy-two million, eight hundred forty-three thousand, four hundred twenty-eight".