47657968839 has 32 divisors (see below), whose sum is σ = 77653309440. Its totient is φ = 28703971296.

The previous prime is 47657968801. The next prime is 47657968867. The reversal of 47657968839 is 93886975674.

47657968839 is a `hidden beast` number, since 47 + 6 + 579 + 6 + 8 + 8 + 3 + 9 = 666.

It is not a de Polignac number, because 47657968839 - 2¹² = 47657964743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47657960839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1427947 + ... + 1460940.

It is an arithmetic number, because the mean of its divisors is an integer number (2426665920).

Almost surely, 2^47657968839 is an apocalyptic number.

47657968839 is a deficient number, since it is larger than the sum of its proper divisors (29995340601).

47657968839 is a wasteful number, since it uses less digits than its factorization.

47657968839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888956 (or 2888950 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 72.

The spelling of 47657968839 in words is "forty-seven billion, six hundred fifty-seven million, nine hundred sixty-eight thousand, eight hundred thirty-nine".