47368661677 has 2 divisors, whose sum is σ = 47368661678. Its totient is φ = 47368661676.

The previous prime is 47368661611. The next prime is 47368661687. The reversal of 47368661677 is 77616686374.

47368661677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47362381641 + 6280036 = 217629^2 + 2506^2 .

It is a cyclic number.

It is not a de Polignac number, because 47368661677 - 2¹¹ = 47368659629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47368661687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23684330838 + 23684330839.

It is an arithmetic number, because the mean of its divisors is an integer number (23684330839).

Almost surely, 2^47368661677 is an apocalyptic number.

It is an amenable number.

47368661677 is a deficient number, since it is larger than the sum of its proper divisors (1).

47368661677 is an equidigital number, since it uses as much as digits as its factorization.

47368661677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 61.

The spelling of 47368661677 in words is "forty-seven billion, three hundred sixty-eight million, six hundred sixty-one thousand, six hundred seventy-seven".