7930897920 has 960 divisors, whose sum is σ = 33245372160. Its totient is φ = 1791590400.

The previous prime is 7930897831. The next prime is 7930897967. The reversal of 7930897920 is 297980397.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 130014690 + ... + 130014750.

It is an arithmetic number, because the mean of its divisors is an integer number (34630596).

Almost surely, 2^7930897920 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 7930897920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16622686080).

7930897920 is an abundant number, since it is smaller than the sum of its proper divisors (25314474240).

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

7930897920 is a wasteful number, since it uses less digits than its factorization.

7930897920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The square root of 7930897920 is about 89055.5889318576. The cubic root of 7930897920 is about 1994.2248331084.

The spelling of 7930897920 in words is "seven billion, nine hundred thirty million, eight hundred ninety-seven thousand, nine hundred twenty".