42974968856 has 8 divisors (see below), whose sum is σ = 80578066620. Its totient is φ = 21487484424.

The previous prime is 42974968849. The next prime is 42974968901. The reversal of 42974968856 is 65886947924.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2685935546 + ... + 2685935561.

Almost surely, 2^42974968856 is an apocalyptic number.

It is an amenable number.

42974968856 is a deficient number, since it is larger than the sum of its proper divisors (37603097764).

42974968856 is a wasteful number, since it uses less digits than its factorization.

42974968856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371871113 (or 5371871109 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 68.

The spelling of 42974968856 in words is "forty-two billion, nine hundred seventy-four million, nine hundred sixty-eight thousand, eight hundred fifty-six".