7938770880 has 168 divisors, whose sum is σ = 26107381872. Its totient is φ = 2043797504.

The previous prime is 7938770869. The next prime is 7938770881. The reversal of 7938770880 is 880778397.

It is a self number, because there is not a number n which added to its sum of digits gives 7938770880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938770881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802444 + ... + 812276.

Almost surely, 2^7938770880 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 7938770880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13053690936).

7938770880 is an abundant number, since it is smaller than the sum of its proper divisors (18168610992).

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

7938770880 is a wasteful number, since it uses less digits than its factorization.

7938770880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911 (or 9872 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 57.

The square root of 7938770880 is about 89099.7804711100. The cubic root of 7938770880 is about 1994.8845003202.

The spelling of 7938770880 in words is "seven billion, nine hundred thirty-eight million, seven hundred seventy thousand, eight hundred eighty".