61005941723 has 2 divisors, whose sum is σ = 61005941724. Its totient is φ = 61005941722.

The previous prime is 61005941653. The next prime is 61005941761. The reversal of 61005941723 is 32714950016.

It is an a-pointer prime, because the next prime (61005941761) can be obtained adding 61005941723 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61005941723 - 2⁸ = 61005941467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (61005941123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30502970861 + 30502970862.

It is an arithmetic number, because the mean of its divisors is an integer number (30502970862).

Almost surely, 2^61005941723 is an apocalyptic number.

61005941723 is a deficient number, since it is larger than the sum of its proper divisors (1).

61005941723 is an equidigital number, since it uses as much as digits as its factorization.

61005941723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 61005941723 in words is "sixty-one billion, five million, nine hundred forty-one thousand, seven hundred twenty-three".