1067971844671 has 4 divisors (see below), whose sum is σ = 1067981742432. Its totient is φ = 1067961946912.

The previous prime is 1067971844669. The next prime is 1067971844701. The reversal of 1067971844671 is 1764481797601.

1067971844671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1067971844671 - 2¹ = 1067971844669 is a prime.

It is a super-2 number, since 2×1067971844671² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1067971824671) 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, 4785226 + ... + 5003431.

It is an arithmetic number, because the mean of its divisors is an integer number (266995435608).

Almost surely, 2^{1067971844671} is an apocalyptic number.

1067971844671 is a deficient number, since it is larger than the sum of its proper divisors (9897761).

1067971844671 is an equidigital number, since it uses as much as digits as its factorization.

1067971844671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9897760.

The product of its (nonzero) digits is 14224896, while the sum is 61.

The spelling of 1067971844671 in words is "one trillion, sixty-seven billion, nine hundred seventy-one million, eight hundred forty-four thousand, six hundred seventy-one".