41791684661 has 2 divisors, whose sum is σ = 41791684662. Its totient is φ = 41791684660.

The previous prime is 41791684657. The next prime is 41791684717. The reversal of 41791684661 is 16648619714.

41791684661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28308062500 + 13483622161 = 168250^2 + 116119^2 .

It is a cyclic number.

It is not a de Polignac number, because 41791684661 - 2² = 41791684657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41791684651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20895842330 + 20895842331.

It is an arithmetic number, because the mean of its divisors is an integer number (20895842331).

Almost surely, 2^41791684661 is an apocalyptic number.

It is an amenable number.

41791684661 is a deficient number, since it is larger than the sum of its proper divisors (1).

41791684661 is an equidigital number, since it uses as much as digits as its factorization.

41791684661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The spelling of 41791684661 in words is "forty-one billion, seven hundred ninety-one million, six hundred eighty-four thousand, six hundred sixty-one".