47032972561 has 2 divisors, whose sum is σ = 47032972562. Its totient is φ = 47032972560.

The previous prime is 47032972529. The next prime is 47032972579. The reversal of 47032972561 is 16527923074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39236082561 + 7796890000 = 198081^2 + 88300^2 .

It is a cyclic number.

It is not a de Polignac number, because 47032972561 - 2⁵ = 47032972529 is a prime.

It is not a weakly prime, because it can be changed into another prime (47032972501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23516486280 + 23516486281.

It is an arithmetic number, because the mean of its divisors is an integer number (23516486281).

Almost surely, 2^47032972561 is an apocalyptic number.

It is an amenable number.

47032972561 is a deficient number, since it is larger than the sum of its proper divisors (1).

47032972561 is an equidigital number, since it uses as much as digits as its factorization.

47032972561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 47032972561 in words is "forty-seven billion, thirty-two million, nine hundred seventy-two thousand, five hundred sixty-one".