67959741681 has 48 divisors (see below), whose sum is σ = 108348786000. Its totient is φ = 41031664128.

The previous prime is 67959741679. The next prime is 67959741713. The reversal of 67959741681 is 18614795976.

It can be written as a sum of positive squares in 8 ways, for example, as 41469249600 + 26490492081 = 203640^2 + 162759^2 .

It is not a de Polignac number, because 67959741681 - 2¹ = 67959741679 is a prime.

It is a super-2 number, since 2×67959741681² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67959741581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1015545 + ... + 1080393.

It is an arithmetic number, because the mean of its divisors is an integer number (2257266375).

Almost surely, 2^67959741681 is an apocalyptic number.

It is an amenable number.

67959741681 is a deficient number, since it is larger than the sum of its proper divisors (40389044319).

67959741681 is a wasteful number, since it uses less digits than its factorization.

67959741681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64947 (or 64918 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The spelling of 67959741681 in words is "sixty-seven billion, nine hundred fifty-nine million, seven hundred forty-one thousand, six hundred eighty-one".