83880787171 has 2 divisors, whose sum is σ = 83880787172. Its totient is φ = 83880787170.

The previous prime is 83880787169. The next prime is 83880787213. The reversal of 83880787171 is 17178708838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83880787171 - 2¹ = 83880787169 is a prime.

Together with 83880787169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (83880787141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41940393585 + 41940393586.

It is an arithmetic number, because the mean of its divisors is an integer number (41940393586).

Almost surely, 2^83880787171 is an apocalyptic number.

83880787171 is a deficient number, since it is larger than the sum of its proper divisors (1).

83880787171 is an equidigital number, since it uses as much as digits as its factorization.

83880787171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4214784, while the sum is 58.

The spelling of 83880787171 in words is "eighty-three billion, eight hundred eighty million, seven hundred eighty-seven thousand, one hundred seventy-one".