71883438817 has 8 divisors (see below), whose sum is σ = 74206300160. Its totient is φ = 69560830080.

The previous prime is 71883438779. The next prime is 71883438833.

71883438817 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71883438817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71887438817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639409 + ... + 743377.

It is an arithmetic number, because the mean of its divisors is an integer number (9275787520).

Almost surely, 2^71883438817 is an apocalyptic number.

It is an amenable number.

71883438817 is a deficient number, since it is larger than the sum of its proper divisors (2322861343).

71883438817 is a wasteful number, since it uses less digits than its factorization.

71883438817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126303.

The product of its digits is 7225344, while the sum is 58.

The spelling of 71883438817 in words is "seventy-one billion, eight hundred eighty-three million, four hundred thirty-eight thousand, eight hundred seventeen".