7785228480 has 112 divisors (see below), whose sum is σ = 25087234560. Its totient is φ = 2045058048.

The previous prime is 7785228463. The next prime is 7785228487. The reversal of 7785228480 is 848225877.

It is a super-2 number, since 2×7785228480² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7785228487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3801 + ... + 124839.

Almost surely, 2^7785228480 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 7785228480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12543617280).

7785228480 is an abundant number, since it is smaller than the sum of its proper divisors (17302006080).

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

7785228480 is a wasteful number, since it uses less digits than its factorization.

7785228480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121126 (or 121116 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 51.

The square root of 7785228480 is about 88233.9417684601. The cubic root of 7785228480 is about 1981.9397784260.

The spelling of 7785228480 in words is "seven billion, seven hundred eighty-five million, two hundred twenty-eight thousand, four hundred eighty".