71869883847 has 4 divisors (see below), whose sum is σ = 95826511800. Its totient is φ = 47913255896.

The previous prime is 71869883831. The next prime is 71869883867. The reversal of 71869883847 is 74838896817.

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 71869883847 - 2⁴ = 71869883831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71869883867) 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, 11978313972 + ... + 11978313977.

It is an arithmetic number, because the mean of its divisors is an integer number (23956627950).

Almost surely, 2^71869883847 is an apocalyptic number.

71869883847 is a deficient number, since it is larger than the sum of its proper divisors (23956627953).

71869883847 is a wasteful number, since it uses less digits than its factorization.

71869883847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23956627952.

The product of its digits is 130056192, while the sum is 69.

The spelling of 71869883847 in words is "seventy-one billion, eight hundred sixty-nine million, eight hundred eighty-three thousand, eight hundred forty-seven".