83831906765 has 8 divisors (see below), whose sum is σ = 101075058528. Its totient is φ = 66747678480.

The previous prime is 83831906749. The next prime is 83831906791. The reversal of 83831906765 is 56760913838.

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

It is not a de Polignac number, because 83831906765 - 2⁴ = 83831906749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83831906765.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39729707 + ... + 39731816.

It is an arithmetic number, because the mean of its divisors is an integer number (12634382316).

Almost surely, 2^83831906765 is an apocalyptic number.

It is an amenable number.

83831906765 is a deficient number, since it is larger than the sum of its proper divisors (17243151763).

83831906765 is a wasteful number, since it uses less digits than its factorization.

83831906765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79461739.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 83831906765 in words is "eighty-three billion, eight hundred thirty-one million, nine hundred six thousand, seven hundred sixty-five".