8799669978 has 16 divisors (see below), whose sum is σ = 19199280096. Its totient is φ = 2666566640.

The previous prime is 8799669947. The next prime is 8799670007.

It is a happy number.

8799669978 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66664101 + ... + 66664232.

It is an arithmetic number, because the mean of its divisors is an integer number (1199955006).

Almost surely, 2^8799669978 is an apocalyptic number.

8799669978 is an abundant number, since it is smaller than the sum of its proper divisors (10399610118).

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

8799669978 is a wasteful number, since it uses less digits than its factorization.

8799669978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133328349.

The product of its digits is 740710656, while the sum is 78.

The square root of 8799669978 is about 93806.5561568060. The cubic root of 8799669978 is about 2064.5344218667.

The spelling of 8799669978 in words is "eight billion, seven hundred ninety-nine million, six hundred sixty-nine thousand, nine hundred seventy-eight".