8129512482 has 96 divisors (see below), whose sum is σ = 21440664000. Its totient is φ = 2031184512.

The previous prime is 8129512477. The next prime is 8129512487. The reversal of 8129512482 is 2842159218.

It is an interprime number because it is at equal distance from previous prime (8129512477) and next prime (8129512487).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (8129512487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16644 + ... + 128592.

It is an arithmetic number, because the mean of its divisors is an integer number (223340250).

Almost surely, 2^8129512482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8129512482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10720332000).

8129512482 is an abundant number, since it is smaller than the sum of its proper divisors (13311151518).

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

8129512482 is a wasteful number, since it uses less digits than its factorization.

8129512482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112000 (or 111993 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 8129512482 is about 90163.8091586641. The cubic root of 8129512482 is about 2010.7349838032.

The spelling of 8129512482 in words is "eight billion, one hundred twenty-nine million, five hundred twelve thousand, four hundred eighty-two".