7125920868 has 72 divisors (see below), whose sum is σ = 18722037600. Its totient is φ = 2106684800.

The previous prime is 7125920843. The next prime is 7125920887. The reversal of 7125920868 is 8680295217.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318 + ... + 119381.

It is an arithmetic number, because the mean of its divisors is an integer number (260028300).

Almost surely, 2^7125920868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7125920868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9361018800).

7125920868 is an abundant number, since it is smaller than the sum of its proper divisors (11596116732).

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

7125920868 is a wasteful number, since it uses less digits than its factorization.

7125920868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119769 (or 119756 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 7125920868 is about 84415.1696556964. The cubic root of 7125920868 is about 1924.3334617524. Note that the first 3 decimals are identical.

The spelling of 7125920868 in words is "seven billion, one hundred twenty-five million, nine hundred twenty thousand, eight hundred sixty-eight".