85740917391359 has 2 divisors, whose sum is σ = 85740917391360. Its totient is φ = 85740917391358.

The previous prime is 85740917391329. The next prime is 85740917391379. The reversal of 85740917391359 is 95319371904758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85740917391359 - 2¹² = 85740917387263 is a prime.

It is a super-2 number, since 2×85740917391359² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85740917391292 and 85740917391301.

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42870458695679 + 42870458695680.

It is an arithmetic number, because the mean of its divisors is an integer number (42870458695680).

Almost surely, 2^{85740917391359} is an apocalyptic number.

85740917391359 is a deficient number, since it is larger than the sum of its proper divisors (1).

85740917391359 is an equidigital number, since it uses as much as digits as its factorization.

85740917391359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 257191200, while the sum is 71.

The spelling of 85740917391359 in words is "eighty-five trillion, seven hundred forty billion, nine hundred seventeen million, three hundred ninety-one thousand, three hundred fifty-nine".