42947838748556 has 48 divisors (see below), whose sum is σ = 86165007753216. Its totient is φ = 18348529826304.

The previous prime is 42947838748531. The next prime is 42947838748561. The reversal of 42947838748556 is 65584783874924.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37986236 + ... + 39100508.

It is an arithmetic number, because the mean of its divisors is an integer number (1795104328192).

Almost surely, 2^{42947838748556} is an apocalyptic number.

It is an amenable number.

42947838748556 is an abundant number, since it is smaller than the sum of its proper divisors (43217169004660).

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

42947838748556 is a wasteful number, since it uses less digits than its factorization.

42947838748556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118598 (or 1118596 counting only the distinct ones).

The product of its digits is 13005619200, while the sum is 80.

The spelling of 42947838748556 in words is "forty-two trillion, nine hundred forty-seven billion, eight hundred thirty-eight million, seven hundred forty-eight thousand, five hundred fifty-six".