7889425632 has 144 divisors (see below), whose sum is σ = 25763512320. Its totient is φ = 2264889600.

The previous prime is 7889425627. The next prime is 7889425639. The reversal of 7889425632 is 2365249887.

7889425632 is a `hidden beast` number, since 78 + 8 + 9 + 4 + 2 + 563 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7889425639) by changing a digit.

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, 5344 + ... + 125727.

It is an arithmetic number, because the mean of its divisors is an integer number (178913280).

Almost surely, 2^7889425632 is an apocalyptic number.

7889425632 is a gapful number since it is divisible by the number (72) 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 7889425632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12881756160).

7889425632 is an abundant number, since it is smaller than the sum of its proper divisors (17874086688).

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

7889425632 is a wasteful number, since it uses less digits than its factorization.

7889425632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131117 (or 131106 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 7889425632 is about 88822.4387866039. The cubic root of 7889425632 is about 1990.7426865179.

The spelling of 7889425632 in words is "seven billion, eight hundred eighty-nine million, four hundred twenty-five thousand, six hundred thirty-two".