85871552736 has 48 divisors (see below), whose sum is σ = 238672408464. Its totient is φ = 26940094464.

The previous prime is 85871552731. The next prime is 85871552737. The reversal of 85871552736 is 63725517858.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85871552731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26307055 + ... + 26310318.

It is an arithmetic number, because the mean of its divisors is an integer number (4972341843).

Almost surely, 2^85871552736 is an apocalyptic number.

It is an amenable number.

85871552736 is an abundant number, since it is smaller than the sum of its proper divisors (152800855728).

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

85871552736 is a wasteful number, since it uses less digits than its factorization.

85871552736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52617403 (or 52617395 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 57.

The spelling of 85871552736 in words is "eighty-five billion, eight hundred seventy-one million, five hundred fifty-two thousand, seven hundred thirty-six".