7939803840 has 112 divisors (see below), whose sum is σ = 25340084448. Its totient is φ = 2106261504.

The previous prime is 7939803797. The next prime is 7939803853. The reversal of 7939803840 is 483089397.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163854 + ... + 206706.

It is an arithmetic number, because the mean of its divisors is an integer number (226250754).

Almost surely, 2^7939803840 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 7939803840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12670042224).

7939803840 is an abundant number, since it is smaller than the sum of its proper divisors (17400280608).

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

7939803840 is a wasteful number, since it uses less digits than its factorization.

7939803840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43066 (or 43056 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 7939803840 is about 89105.5769298421. The cubic root of 7939803840 is about 1994.9710186053.

The spelling of 7939803840 in words is "seven billion, nine hundred thirty-nine million, eight hundred three thousand, eight hundred forty".