63974619044 has 24 divisors (see below), whose sum is σ = 127971816000. Its totient is φ = 27412855776.

The previous prime is 63974618987. The next prime is 63974619061. The reversal of 63974619044 is 44091647936.

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, 37742 + ... + 359685.

It is an arithmetic number, because the mean of its divisors is an integer number (5332159000).

Almost surely, 2^63974619044 is an apocalyptic number.

It is an amenable number.

63974619044 is an abundant number, since it is smaller than the sum of its proper divisors (63997196956).

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

63974619044 is a wasteful number, since it uses less digits than its factorization.

63974619044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403187 (or 403185 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 63974619044 in words is "sixty-three billion, nine hundred seventy-four million, six hundred nineteen thousand, forty-four".