7883779272 has 64 divisors (see below), whose sum is σ = 20291969280. Its totient is φ = 2551010112.

The previous prime is 7883779247. The next prime is 7883779273. The reversal of 7883779272 is 2729773887.

It is not an unprimeable number, because it can be changed into a prime (7883779273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144783 + ... + 191649.

It is an arithmetic number, because the mean of its divisors is an integer number (317062020).

Almost surely, 2^7883779272 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 7883779272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10145984640).

7883779272 is an abundant number, since it is smaller than the sum of its proper divisors (12408190008).

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

7883779272 is a wasteful number, since it uses less digits than its factorization.

7883779272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47082 (or 47078 counting only the distinct ones).

The product of its digits is 16595712, while the sum is 60.

The square root of 7883779272 is about 88790.6485616588. The cubic root of 7883779272 is about 1990.2676569017.

The spelling of 7883779272 in words is "seven billion, eight hundred eighty-three million, seven hundred seventy-nine thousand, two hundred seventy-two".