67997533306 has 8 divisors (see below), whose sum is σ = 103047808500. Its totient is φ = 33648263808.

The previous prime is 67997533291. The next prime is 67997533313. The reversal of 67997533306 is 60333579976.

It can be written as a sum of positive squares in 2 ways, for example, as 62504500081 + 5493033225 = 250009^2 + 74115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 175251181 + ... + 175251568.

Almost surely, 2^67997533306 is an apocalyptic number.

67997533306 is a deficient number, since it is larger than the sum of its proper divisors (35050275194).

67997533306 is a wasteful number, since it uses less digits than its factorization.

67997533306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350502848.

The product of its (nonzero) digits is 19289340, while the sum is 58.

The spelling of 67997533306 in words is "sixty-seven billion, nine hundred ninety-seven million, five hundred thirty-three thousand, three hundred six".