71112343807 has 4 divisors (see below), whose sum is σ = 71116499520. Its totient is φ = 71108188096.

The previous prime is 71112343781. The next prime is 71112343849. The reversal of 71112343807 is 70834321117.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71112343807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71112313807) 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, 2052082 + ... + 2086447.

It is an arithmetic number, because the mean of its divisors is an integer number (17779124880).

Almost surely, 2^71112343807 is an apocalyptic number.

71112343807 is a deficient number, since it is larger than the sum of its proper divisors (4155713).

71112343807 is a wasteful number, since it uses less digits than its factorization.

71112343807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155712.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 71112343807 in words is "seventy-one billion, one hundred twelve million, three hundred forty-three thousand, eight hundred seven".