85112747052 has 12 divisors (see below), whose sum is σ = 198596409816. Its totient is φ = 28370915680.

The previous prime is 85112747051. The next prime is 85112747059. The reversal of 85112747052 is 25074721158.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 85112746995 and 85112747013.

It is not an unprimeable number, because it can be changed into a prime (85112747051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3546364449 + ... + 3546364472.

It is an arithmetic number, because the mean of its divisors is an integer number (16549700818).

Almost surely, 2^85112747052 is an apocalyptic number.

It is an amenable number.

85112747052 is an abundant number, since it is smaller than the sum of its proper divisors (113483662764).

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

85112747052 is a wasteful number, since it uses less digits than its factorization.

85112747052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7092728928 (or 7092728926 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 85112747052 in words is "eighty-five billion, one hundred twelve million, seven hundred forty-seven thousand, fifty-two".