8798778978 has 48 divisors (see below), whose sum is σ = 20393061984. Its totient is φ = 2509450240.

The previous prime is 8798778899. The next prime is 8798778979.

8798778978 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×8798778978³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8798778979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211575 + ... + 249722.

It is an arithmetic number, because the mean of its divisors is an integer number (424855458).

Almost surely, 2^8798778978 is an apocalyptic number.

8798778978 is an abundant number, since it is smaller than the sum of its proper divisors (11594283006).

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

8798778978 is a wasteful number, since it uses less digits than its factorization.

8798778978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461347 (or 461330 counting only the distinct ones).

The product of its digits is 796594176, while the sum is 78.

The square root of 8798778978 is about 93801.8069015731. The cubic root of 8798778978 is about 2064.4647388649.

The spelling of 8798778978 in words is "eight billion, seven hundred ninety-eight million, seven hundred seventy-eight thousand, nine hundred seventy-eight".