8780516668 has 24 divisors (see below), whose sum is σ = 19157491584. Its totient is φ = 3420980400.

The previous prime is 8780516651. The next prime is 8780516681. The reversal of 8780516668 is 8666150878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14253778 + ... + 14254393.

It is an arithmetic number, because the mean of its divisors is an integer number (798228816).

Almost surely, 2^8780516668 is an apocalyptic number.

It is an amenable number.

8780516668 is an abundant number, since it is smaller than the sum of its proper divisors (10376974916).

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

8780516668 is a wasteful number, since it uses less digits than its factorization.

8780516668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28508193 (or 28508191 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The square root of 8780516668 is about 93704.4111448335. The cubic root of 8780516668 is about 2063.0354492888.

The spelling of 8780516668 in words is "eight billion, seven hundred eighty million, five hundred sixteen thousand, six hundred sixty-eight".