85271853816 has 40 divisors (see below), whose sum is σ = 238840147920. Its totient is φ = 28423951056.

The previous prime is 85271853787. The next prime is 85271853857. The reversal of 85271853816 is 61835817258.

85271853816 is a `hidden beast` number, since 8 + 527 + 1 + 85 + 38 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 65795536 + ... + 65796831.

It is an arithmetic number, because the mean of its divisors is an integer number (5971003698).

Almost surely, 2^85271853816 is an apocalyptic number.

It is an amenable number.

85271853816 is an abundant number, since it is smaller than the sum of its proper divisors (153568294104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85271853816 is a wasteful number, since it uses less digits than its factorization.

85271853816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131592385 (or 131592372 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 85271853816 in words is "eighty-five billion, two hundred seventy-one million, eight hundred fifty-three thousand, eight hundred sixteen".