67075797511 has 2 divisors, whose sum is σ = 67075797512. Its totient is φ = 67075797510.

The previous prime is 67075797487. The next prime is 67075797517. The reversal of 67075797511 is 11579757076.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67075797511 is a prime.

It is a super-2 number, since 2×67075797511² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67075797517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33537898755 + 33537898756.

It is an arithmetic number, because the mean of its divisors is an integer number (33537898756).

Almost surely, 2^67075797511 is an apocalyptic number.

67075797511 is a deficient number, since it is larger than the sum of its proper divisors (1).

67075797511 is an equidigital number, since it uses as much as digits as its factorization.

67075797511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3241350, while the sum is 55.

The spelling of 67075797511 in words is "sixty-seven billion, seventy-five million, seven hundred ninety-seven thousand, five hundred eleven".