61045217063 has 2 divisors, whose sum is σ = 61045217064. Its totient is φ = 61045217062.

The previous prime is 61045217039. The next prime is 61045217083. The reversal of 61045217063 is 36071254016.

61045217063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61045217063 - 2¹⁰ = 61045216039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61045217003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30522608531 + 30522608532.

It is an arithmetic number, because the mean of its divisors is an integer number (30522608532).

Almost surely, 2^61045217063 is an apocalyptic number.

61045217063 is a deficient number, since it is larger than the sum of its proper divisors (1).

61045217063 is an equidigital number, since it uses as much as digits as its factorization.

61045217063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 61045217063 in words is "sixty-one billion, forty-five million, two hundred seventeen thousand, sixty-three".