67707467067081 has 4 divisors (see below), whose sum is σ = 90276622756112. Its totient is φ = 45138311378052.

The previous prime is 67707467067013. The next prime is 67707467067151. The reversal of 67707467067081 is 18076076470776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-67707467067081 is a prime.

It is a super-2 number, since 2×67707467067081² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67707467065081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11284577844511 + ... + 11284577844516.

It is an arithmetic number, because the mean of its divisors is an integer number (22569155689028).

Almost surely, 2^{67707467067081} is an apocalyptic number.

It is an amenable number.

67707467067081 is a deficient number, since it is larger than the sum of its proper divisors (22569155689031).

67707467067081 is a wasteful number, since it uses less digits than its factorization.

67707467067081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22569155689030.

The product of its (nonzero) digits is 116169984, while the sum is 66.

The spelling of 67707467067081 in words is "sixty-seven trillion, seven hundred seven billion, four hundred sixty-seven million, sixty-seven thousand, eighty-one".