67408128211 has 16 divisors (see below), whose sum is σ = 70097140800. Its totient is φ = 64766642688.

The previous prime is 67408128191. The next prime is 67408128251. The reversal of 67408128211 is 11282180476.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67408128211 is a prime.

It is a super-2 number, since 2×67408128211² (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 (67408128251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2651386 + ... + 2676688.

It is an arithmetic number, because the mean of its divisors is an integer number (4381071300).

Almost surely, 2^67408128211 is an apocalyptic number.

67408128211 is a deficient number, since it is larger than the sum of its proper divisors (2689012589).

67408128211 is a wasteful number, since it uses less digits than its factorization.

67408128211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26238.

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 67408128211 in words is "sixty-seven billion, four hundred eight million, one hundred twenty-eight thousand, two hundred eleven".