67315511551373 has 2 divisors, whose sum is σ = 67315511551374. Its totient is φ = 67315511551372.

The previous prime is 67315511551367. The next prime is 67315511551403. The reversal of 67315511551373 is 37315511551376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55895315884489 + 11420195666884 = 7476317^2 + 3379378^2 .

It is a cyclic number.

It is not a de Polignac number, because 67315511551373 - 2⁴ = 67315511551357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67315511551333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33657755775686 + 33657755775687.

It is an arithmetic number, because the mean of its divisors is an integer number (33657755775687).

Almost surely, 2^{67315511551373} is an apocalyptic number.

It is an amenable number.

67315511551373 is a deficient number, since it is larger than the sum of its proper divisors (1).

67315511551373 is an equidigital number, since it uses as much as digits as its factorization.

67315511551373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4961250, while the sum is 53.

The spelling of 67315511551373 in words is "sixty-seven trillion, three hundred fifteen billion, five hundred eleven million, five hundred fifty-one thousand, three hundred seventy-three".