67247257313 has 2 divisors, whose sum is σ = 67247257314. Its totient is φ = 67247257312.

The previous prime is 67247257303. The next prime is 67247257333. The reversal of 67247257313 is 31375274276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55784771344 + 11462485969 = 236188^2 + 107063^2 .

It is a cyclic number.

It is not a de Polignac number, because 67247257313 - 2⁶ = 67247257249 is a prime.

It is a super-2 number, since 2×67247257313² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67247257303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33623628656 + 33623628657.

It is an arithmetic number, because the mean of its divisors is an integer number (33623628657).

Almost surely, 2^67247257313 is an apocalyptic number.

It is an amenable number.

67247257313 is a deficient number, since it is larger than the sum of its proper divisors (1).

67247257313 is an equidigital number, since it uses as much as digits as its factorization.

67247257313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 47.

The spelling of 67247257313 in words is "sixty-seven billion, two hundred forty-seven million, two hundred fifty-seven thousand, three hundred thirteen".