67241811979 has 16 divisors (see below), whose sum is σ = 70869141504. Its totient is φ = 63719510400.

The previous prime is 67241811961. The next prime is 67241812037. The reversal of 67241811979 is 97911814276.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 67241811979 - 2¹⁷ = 67241680907 is a prime.

It is a super-2 number, since 2×67241811979² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67241811919) 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 in 15 ways as a sum of consecutive naturals, for example, 175114 + ... + 406384.

It is an arithmetic number, because the mean of its divisors is an integer number (4429321344).

Almost surely, 2^67241811979 is an apocalyptic number.

67241811979 is a deficient number, since it is larger than the sum of its proper divisors (3627329525).

67241811979 is a wasteful number, since it uses less digits than its factorization.

67241811979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231498.

The product of its digits is 1524096, while the sum is 55.

The spelling of 67241811979 in words is "sixty-seven billion, two hundred forty-one million, eight hundred eleven thousand, nine hundred seventy-nine".