85711211758 has 4 divisors (see below), whose sum is σ = 128566817640. Its totient is φ = 42855605878.

The previous prime is 85711211749. The next prime is 85711211767.

85711211758 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85711211749) and next prime (85711211767).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21427802938 + ... + 21427802941.

It is an arithmetic number, because the mean of its divisors is an integer number (32141704410).

Almost surely, 2^85711211758 is an apocalyptic number.

85711211758 is a deficient number, since it is larger than the sum of its proper divisors (42855605882).

85711211758 is a wasteful number, since it uses less digits than its factorization.

85711211758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42855605881.

The product of its digits is 156800, while the sum is 46.

The spelling of 85711211758 in words is "eighty-five billion, seven hundred eleven million, two hundred eleven thousand, seven hundred fifty-eight".