83880787169 has 2 divisors, whose sum is σ = 83880787170. Its totient is φ = 83880787168.

The previous prime is 83880787157. The next prime is 83880787171. The reversal of 83880787169 is 96178708838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67126073569 + 16754713600 = 259087^2 + 129440^2 .

It is a cyclic number.

It is not a de Polignac number, because 83880787169 - 2¹² = 83880783073 is a prime.

It is a super-2 number, since 2×83880787169² (a number of 23 digits) contains 22 as substring.

Together with 83880787171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83880787069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41940393584 + 41940393585.

It is an arithmetic number, because the mean of its divisors is an integer number (41940393585).

Almost surely, 2^83880787169 is an apocalyptic number.

It is an amenable number.

83880787169 is a deficient number, since it is larger than the sum of its proper divisors (1).

83880787169 is an equidigital number, since it uses as much as digits as its factorization.

83880787169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32514048, while the sum is 65.

The spelling of 83880787169 in words is "eighty-three billion, eight hundred eighty million, seven hundred eighty-seven thousand, one hundred sixty-nine".