7045505280 has 576 divisors, whose sum is σ = 27973693440. Its totient is φ = 1664409600.

The previous prime is 7045505263. The next prime is 7045505303. The reversal of 7045505280 is 825055407.

It is a happy number.

7045505280 is a `hidden beast` number, since 70 + 4 + 5 + 505 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16346665 + ... + 16347095.

It is an arithmetic number, because the mean of its divisors is an integer number (48565440).

Almost surely, 2^7045505280 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 7045505280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13986846720).

7045505280 is an abundant number, since it is smaller than the sum of its proper divisors (20928188160).

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

7045505280 is a wasteful number, since it uses less digits than its factorization.

7045505280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 7045505280 is about 83937.5081831716. The cubic root of 7045505280 is about 1917.0673980335.

The spelling of 7045505280 in words is "seven billion, forty-five million, five hundred five thousand, two hundred eighty".