47197042961 has 2 divisors, whose sum is σ = 47197042962. Its totient is φ = 47197042960.

The previous prime is 47197042859. The next prime is 47197043017. The reversal of 47197042961 is 16924079174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30500526736 + 16696516225 = 174644^2 + 129215^2 .

It is a cyclic number.

It is not a de Polignac number, because 47197042961 - 2¹⁰ = 47197041937 is a prime.

It is not a weakly prime, because it can be changed into another prime (47197042661) 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, 23598521480 + 23598521481.

It is an arithmetic number, because the mean of its divisors is an integer number (23598521481).

Almost surely, 2^47197042961 is an apocalyptic number.

It is an amenable number.

47197042961 is a deficient number, since it is larger than the sum of its proper divisors (1).

47197042961 is an equidigital number, since it uses as much as digits as its factorization.

47197042961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 47197042961 in words is "forty-seven billion, one hundred ninety-seven million, forty-two thousand, nine hundred sixty-one".