7931880000 has 420 divisors, whose sum is σ = 31008236688. Its totient is φ = 1921920000.

The previous prime is 7931879971. The next prime is 7931880001. The reversal of 7931880000 is 881397.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7931880001) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3958999 + ... + 3961001.

Almost surely, 2^7931880000 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 7931880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15504118344).

7931880000 is an abundant number, since it is smaller than the sum of its proper divisors (23076356688).

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

7931880000 is a wasteful number, since it uses less digits than its factorization.

7931880000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 7931880000 is about 89061.1026206166. The cubic root of 7931880000 is about 1994.3071444057.

The spelling of 7931880000 in words is "seven billion, nine hundred thirty-one million, eight hundred eighty thousand".