83708465861 has 8 divisors (see below), whose sum is σ = 83890695000. Its totient is φ = 83526423552.

The previous prime is 83708465833. The next prime is 83708465903. The reversal of 83708465861 is 16856480738.

It can be written as a sum of positive squares in 4 ways, for example, as 15799233025 + 67909232836 = 125695^2 + 260594^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 83708465861 - 2¹⁰ = 83708464837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83708465797 and 83708465806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83708465831) 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, 869801 + ... + 961233.

It is an arithmetic number, because the mean of its divisors is an integer number (10486336875).

Almost surely, 2^83708465861 is an apocalyptic number.

It is an amenable number.

83708465861 is a deficient number, since it is larger than the sum of its proper divisors (182229139).

83708465861 is a wasteful number, since it uses less digits than its factorization.

83708465861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93415.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 83708465861 in words is "eighty-three billion, seven hundred eight million, four hundred sixty-five thousand, eight hundred sixty-one".