67920305211 has 24 divisors (see below), whose sum is σ = 107497450944. Its totient is φ = 40982469360.

The previous prime is 67920305179. The next prime is 67920305261. The reversal of 67920305211 is 11250302976.

It is not a de Polignac number, because 67920305211 - 2⁵ = 67920305179 is a prime.

It is a super-2 number, since 2×67920305211² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (67920305261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1488681 + ... + 1533626.

It is an arithmetic number, because the mean of its divisors is an integer number (4479060456).

Almost surely, 2^67920305211 is an apocalyptic number.

67920305211 is a deficient number, since it is larger than the sum of its proper divisors (39577145733).

67920305211 is a wasteful number, since it uses less digits than its factorization.

67920305211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022551 (or 3022548 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 67920305211 in words is "sixty-seven billion, nine hundred twenty million, three hundred five thousand, two hundred eleven".