67840111734 has 16 divisors (see below), whose sum is σ = 135779493888. Its totient is φ = 22596825512.

The previous prime is 67840111733. The next prime is 67840111739. The reversal of 67840111734 is 43711104876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67840111733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4127382 + ... + 4143785.

It is an arithmetic number, because the mean of its divisors is an integer number (8486218368).

Almost surely, 2^67840111734 is an apocalyptic number.

67840111734 is an abundant number, since it is smaller than the sum of its proper divisors (67939382154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67840111734 is a wasteful number, since it uses less digits than its factorization.

67840111734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272539.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 67840111734 in words is "sixty-seven billion, eight hundred forty million, one hundred eleven thousand, seven hundred thirty-four".