8129691360 has 384 divisors, whose sum is σ = 32930150400. Its totient is φ = 1857655296.

The previous prime is 8129691299. The next prime is 8129691371. The reversal of 8129691360 is 631969218.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2447781 + ... + 2451099.

It is an arithmetic number, because the mean of its divisors is an integer number (85755600).

Almost surely, 2^8129691360 is an apocalyptic number.

8129691360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8129691360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16465075200).

8129691360 is an abundant number, since it is smaller than the sum of its proper divisors (24800459040).

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

8129691360 is an equidigital number, since it uses as much as digits as its factorization.

8129691360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362 (or 3336 counting only the distinct ones).

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

The square root of 8129691360 is about 90164.8011144038. The cubic root of 8129691360 is about 2010.7497314532.

The spelling of 8129691360 in words is "eight billion, one hundred twenty-nine million, six hundred ninety-one thousand, three hundred sixty".