47566532641 has 2 divisors, whose sum is σ = 47566532642. Its totient is φ = 47566532640.

The previous prime is 47566532639. The next prime is 47566532687. The reversal of 47566532641 is 14623566574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40832689041 + 6733843600 = 202071^2 + 82060^2 .

It is a cyclic number.

It is not a de Polignac number, because 47566532641 - 2¹ = 47566532639 is a prime.

Together with 47566532639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47566532621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23783266320 + 23783266321.

It is an arithmetic number, because the mean of its divisors is an integer number (23783266321).

Almost surely, 2^47566532641 is an apocalyptic number.

It is an amenable number.

47566532641 is a deficient number, since it is larger than the sum of its proper divisors (1).

47566532641 is an equidigital number, since it uses as much as digits as its factorization.

47566532641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 49.

The spelling of 47566532641 in words is "forty-seven billion, five hundred sixty-six million, five hundred thirty-two thousand, six hundred forty-one".