8821520378 has 8 divisors (see below), whose sum is σ = 14435215200. Its totient is φ = 4009781980.

The previous prime is 8821520347. The next prime is 8821520399. The reversal of 8821520378 is 8730251288.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200489078 + ... + 200489121.

It is an arithmetic number, because the mean of its divisors is an integer number (1804401900).

Almost surely, 2^8821520378 is an apocalyptic number.

8821520378 is a deficient number, since it is larger than the sum of its proper divisors (5613694822).

8821520378 is a wasteful number, since it uses less digits than its factorization.

8821520378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400978212.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 8821520378 is about 93922.9491551453. The cubic root of 8821520378 is about 2066.2418198440.

The spelling of 8821520378 in words is "eight billion, eight hundred twenty-one million, five hundred twenty thousand, three hundred seventy-eight".