61586724841 has 2 divisors, whose sum is σ = 61586724842. Its totient is φ = 61586724840.

The previous prime is 61586724803. The next prime is 61586724863. The reversal of 61586724841 is 14842768516.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53160219225 + 8426505616 = 230565^2 + 91796^2 .

It is a cyclic number.

It is not a de Polignac number, because 61586724841 - 2¹⁷ = 61586593769 is a prime.

It is not a weakly prime, because it can be changed into another prime (61586725841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30793362420 + 30793362421.

It is an arithmetic number, because the mean of its divisors is an integer number (30793362421).

Almost surely, 2^61586724841 is an apocalyptic number.

It is an amenable number.

61586724841 is a deficient number, since it is larger than the sum of its proper divisors (1).

61586724841 is an equidigital number, since it uses as much as digits as its factorization.

61586724841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 52.

The spelling of 61586724841 in words is "sixty-one billion, five hundred eighty-six million, seven hundred twenty-four thousand, eight hundred forty-one".