67529742317 has 2 divisors, whose sum is σ = 67529742318. Its totient is φ = 67529742316.

The previous prime is 67529742283. The next prime is 67529742323. The reversal of 67529742317 is 71324792576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63074313316 + 4455429001 = 251146^2 + 66749^2 .

It is a cyclic number.

It is not a de Polignac number, because 67529742317 - 2²⁴ = 67512965101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67529742347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33764871158 + 33764871159.

It is an arithmetic number, because the mean of its divisors is an integer number (33764871159).

Almost surely, 2^67529742317 is an apocalyptic number.

It is an amenable number.

67529742317 is a deficient number, since it is larger than the sum of its proper divisors (1).

67529742317 is an equidigital number, since it uses as much as digits as its factorization.

67529742317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280, while the sum is 53.

The spelling of 67529742317 in words is "sixty-seven billion, five hundred twenty-nine million, seven hundred forty-two thousand, three hundred seventeen".