47561264677 has 2 divisors, whose sum is σ = 47561264678. Its totient is φ = 47561264676.

The previous prime is 47561264627. The next prime is 47561264693. The reversal of 47561264677 is 77646216574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45228954241 + 2332310436 = 212671^2 + 48294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47561264677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47561264627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23780632338 + 23780632339.

It is an arithmetic number, because the mean of its divisors is an integer number (23780632339).

Almost surely, 2^47561264677 is an apocalyptic number.

It is an amenable number.

47561264677 is a deficient number, since it is larger than the sum of its proper divisors (1).

47561264677 is an equidigital number, since it uses as much as digits as its factorization.

47561264677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 55.

The spelling of 47561264677 in words is "forty-seven billion, five hundred sixty-one million, two hundred sixty-four thousand, six hundred seventy-seven".