47156318668 has 12 divisors (see below), whose sum is σ = 82526678640. Its totient is φ = 23577267632.

The previous prime is 47156318647. The next prime is 47156318669. The reversal of 47156318668 is 86681365174.

It is not an unprimeable number, because it can be changed into a prime (47156318669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95896 + ... + 321727.

It is an arithmetic number, because the mean of its divisors is an integer number (6877223220).

Almost surely, 2^47156318668 is an apocalyptic number.

It is an amenable number.

47156318668 is a deficient number, since it is larger than the sum of its proper divisors (35370359972).

47156318668 is a wasteful number, since it uses less digits than its factorization.

47156318668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445856 (or 445854 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 47156318668 in words is "forty-seven billion, one hundred fifty-six million, three hundred eighteen thousand, six hundred sixty-eight".