8281939512 has 64 divisors (see below), whose sum is σ = 25813843200. Its totient is φ = 2151152640.

The previous prime is 8281939493. The next prime is 8281939517. The reversal of 8281939512 is 2159391828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8281939517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2238937 + ... + 2242632.

It is an arithmetic number, because the mean of its divisors is an integer number (403341300).

Almost surely, 2^8281939512 is an apocalyptic number.

It is an amenable number.

8281939512 is an abundant number, since it is smaller than the sum of its proper divisors (17531903688).

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

8281939512 is a wasteful number, since it uses less digits than its factorization.

8281939512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481596 (or 4481592 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 8281939512 is about 91005.1620074378. The cubic root of 8281939512 is about 2023.2242329732.

The spelling of 8281939512 in words is "eight billion, two hundred eighty-one million, nine hundred thirty-nine thousand, five hundred twelve".