67500078413 has 2 divisors, whose sum is σ = 67500078414. Its totient is φ = 67500078412.

The previous prime is 67500078403. The next prime is 67500078439. The reversal of 67500078413 is 31487000576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37043546089 + 30456532324 = 192467^2 + 174518^2 .

It is a cyclic number.

It is not a de Polignac number, because 67500078413 - 2⁸ = 67500078157 is a prime.

It is a super-2 number, since 2×67500078413² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67500078403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33750039206 + 33750039207.

It is an arithmetic number, because the mean of its divisors is an integer number (33750039207).

Almost surely, 2^67500078413 is an apocalyptic number.

It is an amenable number.

67500078413 is a deficient number, since it is larger than the sum of its proper divisors (1).

67500078413 is an equidigital number, since it uses as much as digits as its factorization.

67500078413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

Adding to 67500078413 its reverse (31487000576), we get a palindrome (98987078989).

The spelling of 67500078413 in words is "sixty-seven billion, five hundred million, seventy-eight thousand, four hundred thirteen".