67985445939 has 8 divisors (see below), whose sum is σ = 92357587152. Its totient is φ = 44468467680.

The previous prime is 67985445937. The next prime is 67985445953. The reversal of 67985445939 is 93954458976.

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

It is not a de Polignac number, because 67985445939 - 2¹ = 67985445937 is a prime.

It is a super-3 number, since 3×67985445939³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (67985445937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213790552 + ... + 213790869.

It is an arithmetic number, because the mean of its divisors is an integer number (11544698394).

Almost surely, 2^67985445939 is an apocalyptic number.

67985445939 is a deficient number, since it is larger than the sum of its proper divisors (24372141213).

67985445939 is a wasteful number, since it uses less digits than its factorization.

67985445939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427581477.

The product of its digits is 293932800, while the sum is 69.

The spelling of 67985445939 in words is "sixty-seven billion, nine hundred eighty-five million, four hundred forty-five thousand, nine hundred thirty-nine".