60561834917 has 2 divisors, whose sum is σ = 60561834918. Its totient is φ = 60561834916.

The previous prime is 60561834901. The next prime is 60561834941. The reversal of 60561834917 is 71943816506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60404859076 + 156975841 = 245774^2 + 12529^2 .

It is a cyclic number.

It is not a de Polignac number, because 60561834917 - 2⁴ = 60561834901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60561834217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30280917458 + 30280917459.

It is an arithmetic number, because the mean of its divisors is an integer number (30280917459).

Almost surely, 2^60561834917 is an apocalyptic number.

It is an amenable number.

60561834917 is a deficient number, since it is larger than the sum of its proper divisors (1).

60561834917 is an equidigital number, since it uses as much as digits as its factorization.

60561834917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 60561834917 in words is "sixty billion, five hundred sixty-one million, eight hundred thirty-four thousand, nine hundred seventeen".