743972285728 has 72 divisors (see below), whose sum is σ = 1710959241600. Its totient is φ = 317511024768.

The previous prime is 743972285689. The next prime is 743972285741. The reversal of 743972285728 is 827582279347.

It is a self number, because there is not a number n which added to its sum of digits gives 743972285728.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617868 + ... + 1367371.

It is an arithmetic number, because the mean of its divisors is an integer number (23763322800).

Almost surely, 2^743972285728 is an apocalyptic number.

It is an amenable number.

743972285728 is an abundant number, since it is smaller than the sum of its proper divisors (966986955872).

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

743972285728 is a wasteful number, since it uses less digits than its factorization.

743972285728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985502 (or 1985487 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 64.

The spelling of 743972285728 in words is "seven hundred forty-three billion, nine hundred seventy-two million, two hundred eighty-five thousand, seven hundred twenty-eight".