8712745812 has 36 divisors (see below), whose sum is σ = 22103419156. Its totient is φ = 2893760640.

The previous prime is 8712745801. The next prime is 8712745831. The reversal of 8712745812 is 2185472178.

It can be written as a sum of positive squares in 2 ways, for example, as 538054416 + 8174691396 = 23196^2 + 90414^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426889 + ... + 446832.

Almost surely, 2^8712745812 is an apocalyptic number.

It is an amenable number.

8712745812 is an abundant number, since it is smaller than the sum of its proper divisors (13390673344).

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

8712745812 is a wasteful number, since it uses less digits than its factorization.

8712745812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874008 (or 874003 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 8712745812 is about 93342.0902487190. The cubic root of 8712745812 is about 2057.7140108110.

The spelling of 8712745812 in words is "eight billion, seven hundred twelve million, seven hundred forty-five thousand, eight hundred twelve".