67963587121 has 2 divisors, whose sum is σ = 67963587122. Its totient is φ = 67963587120.

The previous prime is 67963587031. The next prime is 67963587151. The reversal of 67963587121 is 12178536976.

67963587121 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 can be written as a sum of positive squares in only one way, i.e., 67114156096 + 849431025 = 259064^2 + 29145^2 .

It is a cyclic number.

It is not a de Polignac number, because 67963587121 - 2¹¹ = 67963585073 is a prime.

It is not a weakly prime, because it can be changed into another prime (67963587151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33981793560 + 33981793561.

It is an arithmetic number, because the mean of its divisors is an integer number (33981793561).

Almost surely, 2^67963587121 is an apocalyptic number.

It is an amenable number.

67963587121 is a deficient number, since it is larger than the sum of its proper divisors (1).

67963587121 is an equidigital number, since it uses as much as digits as its factorization.

67963587121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 55.

The spelling of 67963587121 in words is "sixty-seven billion, nine hundred sixty-three million, five hundred eighty-seven thousand, one hundred twenty-one".