8129943090 has 48 divisors (see below), whose sum is σ = 21215915136. Its totient is φ = 2159978400.

The previous prime is 8129943071. The next prime is 8129943091. The reversal of 8129943090 is 903499218.

8129943090 is a `hidden beast` number, since 8 + 129 + 9 + 430 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (8129943091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142276 + ... + 191055.

It is an arithmetic number, because the mean of its divisors is an integer number (441998232).

Almost surely, 2^8129943090 is an apocalyptic number.

8129943090 is an abundant number, since it is smaller than the sum of its proper divisors (13085972046).

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

8129943090 is a wasteful number, since it uses less digits than its factorization.

8129943090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333615 (or 333612 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 8129943090 is about 90166.1970474523. The cubic root of 8129943090 is about 2010.7704850416.

The spelling of 8129943090 in words is "eight billion, one hundred twenty-nine million, nine hundred forty-three thousand, ninety".