82704224881543 has 4 divisors (see below), whose sum is σ = 84721401098208. Its totient is φ = 80687048664880.

The previous prime is 82704224881519. The next prime is 82704224881589. The reversal of 82704224881543 is 34518842240728.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82704224881543 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 (82704224081543) 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, 1008588108271 + ... + 1008588108352.

It is an arithmetic number, because the mean of its divisors is an integer number (21180350274552).

Almost surely, 2^{82704224881543} is an apocalyptic number.

82704224881543 is a deficient number, since it is larger than the sum of its proper divisors (2017176216665).

82704224881543 is a wasteful number, since it uses less digits than its factorization.

82704224881543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017176216664.

The product of its (nonzero) digits is 27525120, while the sum is 58.

The spelling of 82704224881543 in words is "eighty-two trillion, seven hundred four billion, two hundred twenty-four million, eight hundred eighty-one thousand, five hundred forty-three".