60561227777 has 2 divisors, whose sum is σ = 60561227778. Its totient is φ = 60561227776.

The previous prime is 60561227773. The next prime is 60561227791. The reversal of 60561227777 is 77772216506.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58482232561 + 2078995216 = 241831^2 + 45596^2 .

It is a cyclic number.

It is not a de Polignac number, because 60561227777 - 2² = 60561227773 is a prime.

It is not a weakly prime, because it can be changed into another prime (60561227773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30280613888 + 30280613889.

It is an arithmetic number, because the mean of its divisors is an integer number (30280613889).

Almost surely, 2^60561227777 is an apocalyptic number.

It is an amenable number.

60561227777 is a deficient number, since it is larger than the sum of its proper divisors (1).

60561227777 is an equidigital number, since it uses as much as digits as its factorization.

60561227777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728720, while the sum is 50.

The spelling of 60561227777 in words is "sixty billion, five hundred sixty-one million, two hundred twenty-seven thousand, seven hundred seventy-seven".