47878952768 has 28 divisors (see below), whose sum is σ = 95363027460. Its totient is φ = 23850473472.

The previous prime is 47878952761. The next prime is 47878952783. The reversal of 47878952768 is 86725987874.

47878952768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20245874944 + 27633077824 = 142288^2 + 166232^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47878952761) 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, 1373321 + ... + 1407752.

Almost surely, 2^47878952768 is an apocalyptic number.

It is an amenable number.

47878952768 is a deficient number, since it is larger than the sum of its proper divisors (47484074692).

47878952768 is a wasteful number, since it uses less digits than its factorization.

47878952768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781354 (or 2781344 counting only the distinct ones).

The product of its digits is 379330560, while the sum is 71.

The spelling of 47878952768 in words is "forty-seven billion, eight hundred seventy-eight million, nine hundred fifty-two thousand, seven hundred sixty-eight".