83876721759 has 6 divisors (see below), whose sum is σ = 121155264776. Its totient is φ = 55917814500.

The previous prime is 83876721751. The next prime is 83876721763. The reversal of 83876721759 is 95712767838.

It is not a de Polignac number, because 83876721759 - 2³ = 83876721751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83876721696 and 83876721705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83876721751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4659817867 + ... + 4659817884.

Almost surely, 2^83876721759 is an apocalyptic number.

83876721759 is a deficient number, since it is larger than the sum of its proper divisors (37278543017).

83876721759 is a wasteful number, since it uses less digits than its factorization.

83876721759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9319635757 (or 9319635754 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

The spelling of 83876721759 in words is "eighty-three billion, eight hundred seventy-six million, seven hundred twenty-one thousand, seven hundred fifty-nine".