12071917071 has 48 divisors (see below), whose sum is σ = 18065436480. Its totient is φ = 7764664320.

The previous prime is 12071917043. The next prime is 12071917093. The reversal of 12071917071 is 17071917021.

It is a happy number.

It is not a de Polignac number, because 12071917071 - 2³⁰ = 10998175247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071917171) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6389695 + ... + 6391583.

It is an arithmetic number, because the mean of its divisors is an integer number (376363260).

Almost surely, 2^12071917071 is an apocalyptic number.

12071917071 is a deficient number, since it is larger than the sum of its proper divisors (5993519409).

12071917071 is a wasteful number, since it uses less digits than its factorization.

12071917071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 6174, while the sum is 36.

The spelling of 12071917071 in words is "twelve billion, seventy-one million, nine hundred seventeen thousand, seventy-one".