67400403313 has 2 divisors, whose sum is σ = 67400403314. Its totient is φ = 67400403312.

The previous prime is 67400403307. The next prime is 67400403347. The reversal of 67400403313 is 31330400476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55033406464 + 12366996849 = 234592^2 + 111207^2 .

It is a cyclic number.

It is not a de Polignac number, because 67400403313 - 2⁵ = 67400403281 is a prime.

It is a super-2 number, since 2×67400403313² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67400403113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33700201656 + 33700201657.

It is an arithmetic number, because the mean of its divisors is an integer number (33700201657).

Almost surely, 2^67400403313 is an apocalyptic number.

It is an amenable number.

67400403313 is a deficient number, since it is larger than the sum of its proper divisors (1).

67400403313 is an equidigital number, since it uses as much as digits as its factorization.

67400403313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 67400403313 its reverse (31330400476), we get a palindrome (98730803789).

The spelling of 67400403313 in words is "sixty-seven billion, four hundred million, four hundred three thousand, three hundred thirteen".