83878658664127 has 2 divisors, whose sum is σ = 83878658664128. Its totient is φ = 83878658664126.

The previous prime is 83878658664109. The next prime is 83878658664181. The reversal of 83878658664127 is 72146685687838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83878658664127 - 2¹¹ = 83878658662079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83878658664197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41939329332063 + 41939329332064.

It is an arithmetic number, because the mean of its divisors is an integer number (41939329332064).

Almost surely, 2^{83878658664127} is an apocalyptic number.

83878658664127 is a deficient number, since it is larger than the sum of its proper divisors (1).

83878658664127 is an equidigital number, since it uses as much as digits as its factorization.

83878658664127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5202247680, while the sum is 79.

The spelling of 83878658664127 in words is "eighty-three trillion, eight hundred seventy-eight billion, six hundred fifty-eight million, six hundred sixty-four thousand, one hundred twenty-seven".