7889123680 has 48 divisors (see below), whose sum is σ = 18645137280. Its totient is φ = 3154450432.

The previous prime is 7889123657. The next prime is 7889123681. The reversal of 7889123680 is 863219887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7889123681) 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 7 ways as a sum of consecutive naturals, for example, 498936 + ... + 514504.

It is an arithmetic number, because the mean of its divisors is an integer number (388440360).

Almost surely, 2^7889123680 is an apocalyptic number.

It is an amenable number.

7889123680 is an abundant number, since it is smaller than the sum of its proper divisors (10756013600).

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

7889123680 is a wasteful number, since it uses less digits than its factorization.

7889123680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751 (or 18743 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 7889123680 is about 88820.7390196681. The cubic root of 7889123680 is about 1990.7172889612.

The spelling of 7889123680 in words is "seven billion, eight hundred eighty-nine million, one hundred twenty-three thousand, six hundred eighty".