83043657458813 has 4 divisors (see below), whose sum is σ = 87928578485820. Its totient is φ = 78158736431808.

The previous prime is 83043657458807. The next prime is 83043657458921. The reversal of 83043657458813 is 31885475634038.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65589962130169 + 17453695328644 = 8098763^2 + 4177762^2 .

It is a cyclic number.

It is not a de Polignac number, because 83043657458813 - 2²⁰ = 83043656410237 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 83043657458813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83043657451813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2442460513478 + ... + 2442460513511.

It is an arithmetic number, because the mean of its divisors is an integer number (21982144621455).

Almost surely, 2^{83043657458813} is an apocalyptic number.

It is an amenable number.

83043657458813 is a deficient number, since it is larger than the sum of its proper divisors (4884921027007).

83043657458813 is a wasteful number, since it uses less digits than its factorization.

83043657458813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884921027006.

The product of its (nonzero) digits is 232243200, while the sum is 65.

The spelling of 83043657458813 in words is "eighty-three trillion, forty-three billion, six hundred fifty-seven million, four hundred fifty-eight thousand, eight hundred thirteen".