47463656561 has 2 divisors, whose sum is σ = 47463656562. Its totient is φ = 47463656560.

The previous prime is 47463656521. The next prime is 47463656579. The reversal of 47463656561 is 16565636474.

47463656561 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., 36307015936 + 11156640625 = 190544^2 + 105625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47463656561 is a prime.

It is not a weakly prime, because it can be changed into another prime (47463656521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23731828280 + 23731828281.

It is an arithmetic number, because the mean of its divisors is an integer number (23731828281).

Almost surely, 2^47463656561 is an apocalyptic number.

It is an amenable number.

47463656561 is a deficient number, since it is larger than the sum of its proper divisors (1).

47463656561 is an equidigital number, since it uses as much as digits as its factorization.

47463656561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 53.

The spelling of 47463656561 in words is "forty-seven billion, four hundred sixty-three million, six hundred fifty-six thousand, five hundred sixty-one".