83439659541 has 8 divisors (see below), whose sum is σ = 127146147904. Its totient is φ = 47679805440.

The previous prime is 83439659533. The next prime is 83439659561. The reversal of 83439659541 is 14595693438.

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

It is not a de Polignac number, because 83439659541 - 2³ = 83439659533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83439659561) by changing a digit.

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, 1986658540 + ... + 1986658581.

It is an arithmetic number, because the mean of its divisors is an integer number (15893268488).

Almost surely, 2^83439659541 is an apocalyptic number.

It is an amenable number.

83439659541 is a deficient number, since it is larger than the sum of its proper divisors (43706488363).

83439659541 is a wasteful number, since it uses less digits than its factorization.

83439659541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973317131.

The product of its digits is 13996800, while the sum is 57.

The spelling of 83439659541 in words is "eighty-three billion, four hundred thirty-nine million, six hundred fifty-nine thousand, five hundred forty-one".