7897044480 has 640 divisors, whose sum is σ = 30028078080. Its totient is φ = 1751777280.

The previous prime is 7897044431. The next prime is 7897044487. The reversal of 7897044480 is 844407987.

It is a tau number, because it is divible by the number of its divisors (640).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7897044487) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43629990 + ... + 43630170.

It is an arithmetic number, because the mean of its divisors is an integer number (46918872).

Almost surely, 2^7897044480 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 7897044480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15014039040).

7897044480 is an abundant number, since it is smaller than the sum of its proper divisors (22131033600).

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

7897044480 is a wasteful number, since it uses less digits than its factorization.

7897044480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 7897044480 is about 88865.3165188759. The cubic root of 7897044480 is about 1991.3833029130.

The spelling of 7897044480 in words is "seven billion, eight hundred ninety-seven million, forty-four thousand, four hundred eighty".