83143944677 has 2 divisors, whose sum is σ = 83143944678. Its totient is φ = 83143944676.

The previous prime is 83143944593. The next prime is 83143944679. The reversal of 83143944677 is 77644934138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61130584516 + 22013360161 = 247246^2 + 148369^2 .

It is a cyclic number.

It is not a de Polignac number, because 83143944677 - 2³² = 78848977381 is a prime.

Together with 83143944679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83143944679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41571972338 + 41571972339.

It is an arithmetic number, because the mean of its divisors is an integer number (41571972339).

Almost surely, 2^83143944677 is an apocalyptic number.

It is an amenable number.

83143944677 is a deficient number, since it is larger than the sum of its proper divisors (1).

83143944677 is an equidigital number, since it uses as much as digits as its factorization.

83143944677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12192768, while the sum is 56.

The spelling of 83143944677 in words is "eighty-three billion, one hundred forty-three million, nine hundred forty-four thousand, six hundred seventy-seven".