83243653243 has 4 divisors (see below), whose sum is σ = 84654562680. Its totient is φ = 81832743808.

The previous prime is 83243653219. The next prime is 83243653249. The reversal of 83243653243 is 34235634238.

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

It is a cyclic number.

It is not a de Polignac number, because 83243653243 - 2⁹ = 83243652731 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 83243653243.

It is not an unprimeable number, because it can be changed into a prime (83243653249) 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, 705454630 + ... + 705454747.

It is an arithmetic number, because the mean of its divisors is an integer number (21163640670).

Almost surely, 2^83243653243 is an apocalyptic number.

83243653243 is a deficient number, since it is larger than the sum of its proper divisors (1410909437).

83243653243 is a wasteful number, since it uses less digits than its factorization.

83243653243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410909436.

The product of its digits is 1244160, while the sum is 43.

The spelling of 83243653243 in words is "eighty-three billion, two hundred forty-three million, six hundred fifty-three thousand, two hundred forty-three".