85543712844 has 24 divisors (see below), whose sum is σ = 210107365440. Its totient is φ = 27013803984.

The previous prime is 85543712797. The next prime is 85543712867. The reversal of 85543712844 is 44821734558.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187595634 + ... + 187596089.

It is an arithmetic number, because the mean of its divisors is an integer number (8754473560).

Almost surely, 2^85543712844 is an apocalyptic number.

It is an amenable number.

85543712844 is an abundant number, since it is smaller than the sum of its proper divisors (124563652596).

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

85543712844 is a wasteful number, since it uses less digits than its factorization.

85543712844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375191749 (or 375191747 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 51.

The spelling of 85543712844 in words is "eighty-five billion, five hundred forty-three million, seven hundred twelve thousand, eight hundred forty-four".