71831834768 has 20 divisors (see below), whose sum is σ = 139228224240. Its totient is φ = 35901970464.

The previous prime is 71831834707. The next prime is 71831834771. The reversal of 71831834768 is 86743813817.

It is a happy number.

It is a super-2 number, since 2×71831834768² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829130 + ... + 911657.

It is an arithmetic number, because the mean of its divisors is an integer number (6961411212).

Almost surely, 2^71831834768 is an apocalyptic number.

It is an amenable number.

71831834768 is a deficient number, since it is larger than the sum of its proper divisors (67396389472).

71831834768 is a wasteful number, since it uses less digits than its factorization.

71831834768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743374 (or 1743368 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 56.

The spelling of 71831834768 in words is "seventy-one billion, eight hundred thirty-one million, eight hundred thirty-four thousand, seven hundred sixty-eight".