83543876887 has 2 divisors, whose sum is σ = 83543876888. Its totient is φ = 83543876886.

The previous prime is 83543876827. The next prime is 83543876893. The reversal of 83543876887 is 78867834538.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83543876887 - 2²³ = 83535488279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83543876807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41771938443 + 41771938444.

It is an arithmetic number, because the mean of its divisors is an integer number (41771938444).

Almost surely, 2^83543876887 is an apocalyptic number.

83543876887 is a deficient number, since it is larger than the sum of its proper divisors (1).

83543876887 is an equidigital number, since it uses as much as digits as its factorization.

83543876887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216760320, while the sum is 67.

The spelling of 83543876887 in words is "eighty-three billion, five hundred forty-three million, eight hundred seventy-six thousand, eight hundred eighty-seven".