71838683817 has 8 divisors (see below), whose sum is σ = 95818614624. Its totient is φ = 47875604448.

The previous prime is 71838683773. The next prime is 71838683837.

71838683817 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71838683817 - 2¹² = 71838679721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71838683837) 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 7 ways as a sum of consecutive naturals, for example, 4202908 + ... + 4219965.

It is an arithmetic number, because the mean of its divisors is an integer number (11977326828).

Almost surely, 2^71838683817 is an apocalyptic number.

It is an amenable number.

71838683817 is a deficient number, since it is larger than the sum of its proper divisors (23979930807).

71838683817 is a wasteful number, since it uses less digits than its factorization.

71838683817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425719.

The product of its digits is 10838016, while the sum is 60.

The spelling of 71838683817 in words is "seventy-one billion, eight hundred thirty-eight million, six hundred eighty-three thousand, eight hundred seventeen".