8480345778 has 24 divisors (see below), whose sum is σ = 19172956608. Its totient is φ = 2703878232.

The previous prime is 8480345723. The next prime is 8480345779. The reversal of 8480345778 is 8775430848.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8480345779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10241550 + ... + 10242377.

It is an arithmetic number, because the mean of its divisors is an integer number (798873192).

Almost surely, 2^8480345778 is an apocalyptic number.

8480345778 is an abundant number, since it is smaller than the sum of its proper divisors (10692610830).

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

8480345778 is a wasteful number, since it uses less digits than its factorization.

8480345778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20483958 (or 20483955 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The square root of 8480345778 is about 92088.7929011994. The cubic root of 8480345778 is about 2039.2533614239.

The spelling of 8480345778 in words is "eight billion, four hundred eighty million, three hundred forty-five thousand, seven hundred seventy-eight".