61243627201 has 2 divisors, whose sum is σ = 61243627202. Its totient is φ = 61243627200.

The previous prime is 61243627183. The next prime is 61243627213. The reversal of 61243627201 is 10272634216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58370560000 + 2873067201 = 241600^2 + 53601^2 .

It is a cyclic number.

It is not a de Polignac number, because 61243627201 - 2⁵ = 61243627169 is a prime.

It is not a weakly prime, because it can be changed into another prime (61243627231) 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, 30621813600 + 30621813601.

It is an arithmetic number, because the mean of its divisors is an integer number (30621813601).

Almost surely, 2^61243627201 is an apocalyptic number.

It is an amenable number.

61243627201 is a deficient number, since it is larger than the sum of its proper divisors (1).

61243627201 is an equidigital number, since it uses as much as digits as its factorization.

61243627201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 61243627201 in words is "sixty-one billion, two hundred forty-three million, six hundred twenty-seven thousand, two hundred one".