67706734329 has 20 divisors (see below), whose sum is σ = 108922326436. Its totient is φ = 41665682016.

The previous prime is 67706734301. The next prime is 67706734373. The reversal of 67706734329 is 92343760776.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27887330025 + 39819404304 = 166995^2 + 199548^2 .

It is not a de Polignac number, because 67706734329 - 2⁵ = 67706734297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67706734229) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32148394 + ... + 32150499.

Almost surely, 2^67706734329 is an apocalyptic number.

It is an amenable number.

67706734329 is a deficient number, since it is larger than the sum of its proper divisors (41215592107).

67706734329 is a wasteful number, since it uses less digits than its factorization.

67706734329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64298918 (or 64298909 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 54.

The spelling of 67706734329 in words is "sixty-seven billion, seven hundred six million, seven hundred thirty-four thousand, three hundred twenty-nine".