85718471159 has 2 divisors, whose sum is σ = 85718471160. Its totient is φ = 85718471158.

The previous prime is 85718471107. The next prime is 85718471183. The reversal of 85718471159 is 95117481758.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85718471159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85718476159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42859235579 + 42859235580.

It is an arithmetic number, because the mean of its divisors is an integer number (42859235580).

Almost surely, 2^85718471159 is an apocalyptic number.

85718471159 is a deficient number, since it is larger than the sum of its proper divisors (1).

85718471159 is an equidigital number, since it uses as much as digits as its factorization.

85718471159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2822400, while the sum is 56.

The spelling of 85718471159 in words is "eighty-five billion, seven hundred eighteen million, four hundred seventy-one thousand, one hundred fifty-nine".