8231985072 has 80 divisors (see below), whose sum is σ = 25018800480. Its totient is φ = 2582581248.

The previous prime is 8231985053. The next prime is 8231985101. The reversal of 8231985072 is 2705891328.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553113 + ... + 567800.

It is an arithmetic number, because the mean of its divisors is an integer number (312735006).

Almost surely, 2^8231985072 is an apocalyptic number.

It is an amenable number.

8231985072 is an abundant number, since it is smaller than the sum of its proper divisors (16786815408).

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

8231985072 is a wasteful number, since it uses less digits than its factorization.

8231985072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120947 (or 1120935 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 8231985072 is about 90730.2875119439. The cubic root of 8231985072 is about 2019.1481779137.

The spelling of 8231985072 in words is "eight billion, two hundred thirty-one million, nine hundred eighty-five thousand, seventy-two".