7932938880 has 128 divisors (see below), whose sum is σ = 25311242880. Its totient is φ = 2113359872.

The previous prime is 7932938879. The next prime is 7932938899. The reversal of 7932938880 is 888392397.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 7932938880.

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, 3545122 + ... + 3547358.

It is an arithmetic number, because the mean of its divisors is an integer number (197744085).

Almost surely, 2^7932938880 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 7932938880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12655621440).

7932938880 is an abundant number, since it is smaller than the sum of its proper divisors (17378304000).

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

7932938880 is a wasteful number, since it uses less digits than its factorization.

7932938880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106 (or 4094 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The square root of 7932938880 is about 89067.0471049759. The cubic root of 7932938880 is about 1994.3958849475.

The spelling of 7932938880 in words is "seven billion, nine hundred thirty-two million, nine hundred thirty-eight thousand, eight hundred eighty".