67312554317263 has 2 divisors, whose sum is σ = 67312554317264. Its totient is φ = 67312554317262.

The previous prime is 67312554317221. The next prime is 67312554317279. The reversal of 67312554317263 is 36271345521376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67312554317263 - 2¹³ = 67312554309071 is a prime.

It is a super-2 number, since 2×67312554317263² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67312554317663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33656277158631 + 33656277158632.

It is an arithmetic number, because the mean of its divisors is an integer number (33656277158632).

Almost surely, 2^{67312554317263} is an apocalyptic number.

67312554317263 is a deficient number, since it is larger than the sum of its proper divisors (1).

67312554317263 is an equidigital number, since it uses as much as digits as its factorization.

67312554317263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19051200, while the sum is 55.

The spelling of 67312554317263 in words is "sixty-seven trillion, three hundred twelve billion, five hundred fifty-four million, three hundred seventeen thousand, two hundred sixty-three".