67840061734 has 16 divisors (see below), whose sum is σ = 104806469088. Its totient is φ = 32909766912.

The previous prime is 67840061713. The next prime is 67840061747. The reversal of 67840061734 is 43716004876.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1272402 + ... + 1324645.

It is an arithmetic number, because the mean of its divisors is an integer number (6550404318).

Almost surely, 2^67840061734 is an apocalyptic number.

67840061734 is a deficient number, since it is larger than the sum of its proper divisors (36966407354).

67840061734 is a wasteful number, since it uses less digits than its factorization.

67840061734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597439.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 67840061734 in words is "sixty-seven billion, eight hundred forty million, sixty-one thousand, seven hundred thirty-four".