8231009816 has 128 divisors (see below), whose sum is σ = 17551987200. Its totient is φ = 3597834240.

The previous prime is 8231009803. The next prime is 8231009837. The reversal of 8231009816 is 6189001328.

It is a self number, because there is not a number n which added to its sum of digits gives 8231009816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21717515 + ... + 21717893.

It is an arithmetic number, because the mean of its divisors is an integer number (137124900).

Almost surely, 2^8231009816 is an apocalyptic number.

It is an amenable number.

8231009816 is an abundant number, since it is smaller than the sum of its proper divisors (9320977384).

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

8231009816 is a wasteful number, since it uses less digits than its factorization.

8231009816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 8231009816 is about 90724.9128740282. The cubic root of 8231009816 is about 2019.0684375624.

The spelling of 8231009816 in words is "eight billion, two hundred thirty-one million, nine thousand, eight hundred sixteen".