47631978727 has 2 divisors, whose sum is σ = 47631978728. Its totient is φ = 47631978726.

The previous prime is 47631978697. The next prime is 47631978763. The reversal of 47631978727 is 72787913674.

47631978727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47631978727 - 2¹⁹ = 47631454439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47631978767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23815989363 + 23815989364.

It is an arithmetic number, because the mean of its divisors is an integer number (23815989364).

Almost surely, 2^47631978727 is an apocalyptic number.

47631978727 is a deficient number, since it is larger than the sum of its proper divisors (1).

47631978727 is an equidigital number, since it uses as much as digits as its factorization.

47631978727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24893568, while the sum is 61.

The spelling of 47631978727 in words is "forty-seven billion, six hundred thirty-one million, nine hundred seventy-eight thousand, seven hundred twenty-seven".