60344644781 has 2 divisors, whose sum is σ = 60344644782. Its totient is φ = 60344644780.

The previous prime is 60344644753. The next prime is 60344644783. The reversal of 60344644781 is 18744644306.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42120994756 + 18223650025 = 205234^2 + 134995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60344644781 is a prime.

It is a super-2 number, since 2×60344644781² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 60344644783, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60344644783) 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, 30172322390 + 30172322391.

It is an arithmetic number, because the mean of its divisors is an integer number (30172322391).

Almost surely, 2^60344644781 is an apocalyptic number.

It is an amenable number.

60344644781 is a deficient number, since it is larger than the sum of its proper divisors (1).

60344644781 is an equidigital number, since it uses as much as digits as its factorization.

60344644781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 60344644781 in words is "sixty billion, three hundred forty-four million, six hundred forty-four thousand, seven hundred eighty-one".