85740917391379 has 2 divisors, whose sum is σ = 85740917391380. Its totient is φ = 85740917391378.

The previous prime is 85740917391359. The next prime is 85740917391391. The reversal of 85740917391379 is 97319371904758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85740917391379 - 2⁴¹ = 83541894135827 is a prime.

It is not a weakly prime, because it can be changed into another prime (85740917391329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42870458695689 + 42870458695690.

It is an arithmetic number, because the mean of its divisors is an integer number (42870458695690).

Almost surely, 2^{85740917391379} is an apocalyptic number.

85740917391379 is a deficient number, since it is larger than the sum of its proper divisors (1).

85740917391379 is an equidigital number, since it uses as much as digits as its factorization.

85740917391379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360067680, while the sum is 73.

The spelling of 85740917391379 in words is "eighty-five trillion, seven hundred forty billion, nine hundred seventeen million, three hundred ninety-one thousand, three hundred seventy-nine".