83043947519 has 4 divisors (see below), whose sum is σ = 89431943496. Its totient is φ = 76655951544.

The previous prime is 83043947489. The next prime is 83043947543. The reversal of 83043947519 is 91574934038.

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 83043947519 - 2¹⁶ = 83043881983 is a prime.

It is a super-2 number, since 2×83043947519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83043947599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3193997969 + ... + 3193997994.

It is an arithmetic number, because the mean of its divisors is an integer number (22357985874).

Almost surely, 2^83043947519 is an apocalyptic number.

83043947519 is a deficient number, since it is larger than the sum of its proper divisors (6387995977).

83043947519 is a wasteful number, since it uses less digits than its factorization.

83043947519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6387995976.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 83043947519 in words is "eighty-three billion, forty-three million, nine hundred forty-seven thousand, five hundred nineteen".