67505207113 has 2 divisors, whose sum is σ = 67505207114. Its totient is φ = 67505207112.

The previous prime is 67505207111. The next prime is 67505207149. The reversal of 67505207113 is 31170250576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39518259264 + 27986947849 = 198792^2 + 167293^2 .

It is a cyclic number.

It is not a de Polignac number, because 67505207113 - 2¹ = 67505207111 is a prime.

Together with 67505207111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67505207111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33752603556 + 33752603557.

It is an arithmetic number, because the mean of its divisors is an integer number (33752603557).

Almost surely, 2^67505207113 is an apocalyptic number.

It is an amenable number.

67505207113 is a deficient number, since it is larger than the sum of its proper divisors (1).

67505207113 is an equidigital number, since it uses as much as digits as its factorization.

67505207113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 37.

Adding to 67505207113 its reverse (31170250576), we get a palindrome (98675457689).

The spelling of 67505207113 in words is "sixty-seven billion, five hundred five million, two hundred seven thousand, one hundred thirteen".