85871751736 has 8 divisors (see below), whose sum is σ = 161009534520. Its totient is φ = 42935875864.

The previous prime is 85871751733. The next prime is 85871751737. The reversal of 85871751736 is 63715717858.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85871751731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5366984476 + ... + 5366984491.

It is an arithmetic number, because the mean of its divisors is an integer number (20126191815).

Almost surely, 2^85871751736 is an apocalyptic number.

It is an amenable number.

85871751736 is a deficient number, since it is larger than the sum of its proper divisors (75137782784).

85871751736 is a wasteful number, since it uses less digits than its factorization.

85871751736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10733968973 (or 10733968969 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 58.

The spelling of 85871751736 in words is "eighty-five billion, eight hundred seventy-one million, seven hundred fifty-one thousand, seven hundred thirty-six".