67560995495891 has 2 divisors, whose sum is σ = 67560995495892. Its totient is φ = 67560995495890.

The previous prime is 67560995495887. The next prime is 67560995495947. The reversal of 67560995495891 is 19859459906576.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67560995495891 - 2² = 67560995495887 is a prime.

It is a super-2 number, since 2×67560995495891² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (67560995495801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33780497747945 + 33780497747946.

It is an arithmetic number, because the mean of its divisors is an integer number (33780497747946).

Almost surely, 2^{67560995495891} is an apocalyptic number.

67560995495891 is a deficient number, since it is larger than the sum of its proper divisors (1).

67560995495891 is an equidigital number, since it uses as much as digits as its factorization.

67560995495891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6613488000, while the sum is 83.

The spelling of 67560995495891 in words is "sixty-seven trillion, five hundred sixty billion, nine hundred ninety-five million, four hundred ninety-five thousand, eight hundred ninety-one".