83698568838143 has 4 divisors (see below), whose sum is σ = 95655507243600. Its totient is φ = 71741630432688.

The previous prime is 83698568838109. The next prime is 83698568838163. The reversal of 83698568838143 is 34183886589638.

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 83698568838143 - 2²⁰ = 83698567789567 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 (83698568838163) 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, 5978469202718 + ... + 5978469202731.

It is an arithmetic number, because the mean of its divisors is an integer number (23913876810900).

Almost surely, 2^{83698568838143} is an apocalyptic number.

83698568838143 is a deficient number, since it is larger than the sum of its proper divisors (11956938405457).

83698568838143 is a wasteful number, since it uses less digits than its factorization.

83698568838143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11956938405456.

The product of its digits is 5733089280, while the sum is 80.

The spelling of 83698568838143 in words is "eighty-three trillion, six hundred ninety-eight billion, five hundred sixty-eight million, eight hundred thirty-eight thousand, one hundred forty-three".