8478780488 has 32 divisors (see below), whose sum is σ = 16417589760. Its totient is φ = 4100874240.

The previous prime is 8478780487. The next prime is 8478780509. The reversal of 8478780488 is 8840878748.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 8478780488.

It is not an unprimeable number, because it can be changed into a prime (8478780487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714056 + ... + 725832.

It is an arithmetic number, because the mean of its divisors is an integer number (513049680).

Almost surely, 2^8478780488 is an apocalyptic number.

It is an amenable number.

8478780488 is a deficient number, since it is larger than the sum of its proper divisors (7938809272).

8478780488 is a wasteful number, since it uses less digits than its factorization.

8478780488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14717 (or 14713 counting only the distinct ones).

The product of its (nonzero) digits is 25690112, while the sum is 62.

The square root of 8478780488 is about 92080.2937006611. The cubic root of 8478780488 is about 2039.1278862215.

The spelling of 8478780488 in words is "eight billion, four hundred seventy-eight million, seven hundred eighty thousand, four hundred eighty-eight".