67845995138 has 8 divisors (see below), whose sum is σ = 101809082640. Its totient is φ = 33909634260.

The previous prime is 67845995123. The next prime is 67845995167. The reversal of 67845995138 is 83159954876.

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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6675308 + ... + 6685463.

It is an arithmetic number, because the mean of its divisors is an integer number (12726135330).

Almost surely, 2^67845995138 is an apocalyptic number.

67845995138 is a deficient number, since it is larger than the sum of its proper divisors (33963087502).

67845995138 is a wasteful number, since it uses less digits than its factorization.

67845995138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13363312.

The product of its digits is 65318400, while the sum is 65.

The spelling of 67845995138 in words is "sixty-seven billion, eight hundred forty-five million, nine hundred ninety-five thousand, one hundred thirty-eight".