60671550781 has 2 divisors, whose sum is σ = 60671550782. Its totient is φ = 60671550780.

The previous prime is 60671550743. The next prime is 60671550809. The reversal of 60671550781 is 18705517606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60094109881 + 577440900 = 245141^2 + 24030^2 .

It is a cyclic number.

It is not a de Polignac number, because 60671550781 - 2¹⁵ = 60671518013 is a prime.

It is a super-2 number, since 2×60671550781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60671550281) 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, 30335775390 + 30335775391.

It is an arithmetic number, because the mean of its divisors is an integer number (30335775391).

Almost surely, 2^60671550781 is an apocalyptic number.

It is an amenable number.

60671550781 is a deficient number, since it is larger than the sum of its proper divisors (1).

60671550781 is an equidigital number, since it uses as much as digits as its factorization.

60671550781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 60671550781 in words is "sixty billion, six hundred seventy-one million, five hundred fifty thousand, seven hundred eighty-one".