85718471213 has 4 divisors (see below), whose sum is σ = 85719349920. Its totient is φ = 85717592508.

The previous prime is 85718471207. The next prime is 85718471227. The reversal of 85718471213 is 31217481758.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 85718471213 - 2³⁴ = 68538602029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85718471203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271703 + ... + 495236.

It is an arithmetic number, because the mean of its divisors is an integer number (21429837480).

Almost surely, 2^85718471213 is an apocalyptic number.

It is an amenable number.

85718471213 is a deficient number, since it is larger than the sum of its proper divisors (878707).

85718471213 is a wasteful number, since it uses less digits than its factorization.

85718471213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878706.

The product of its digits is 376320, while the sum is 47.

The spelling of 85718471213 in words is "eighty-five billion, seven hundred eighteen million, four hundred seventy-one thousand, two hundred thirteen".