85016651831 has 8 divisors (see below), whose sum is σ = 85992940800. Its totient is φ = 84040830720.

The previous prime is 85016651827. The next prime is 85016651833. The reversal of 85016651831 is 13815661058.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85016651831 - 2² = 85016651827 is a prime.

It is a super-2 number, since 2×85016651831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85016651833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255311 + ... + 484991.

It is an arithmetic number, because the mean of its divisors is an integer number (10749117600).

Almost surely, 2^85016651831 is an apocalyptic number.

85016651831 is a deficient number, since it is larger than the sum of its proper divisors (976288969).

85016651831 is a wasteful number, since it uses less digits than its factorization.

85016651831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233929.

The product of its (nonzero) digits is 172800, while the sum is 44.

The spelling of 85016651831 in words is "eighty-five billion, sixteen million, six hundred fifty-one thousand, eight hundred thirty-one".