8821788488 has 8 divisors (see below), whose sum is σ = 16540853430. Its totient is φ = 4410894240.

The previous prime is 8821788457. The next prime is 8821788497. The reversal of 8821788488 is 8848871288.

It can be written as a sum of positive squares in only one way, i.e., 8619636964 + 202151524 = 92842^2 + 14218^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8821788488² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8821788488.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551361773 + ... + 551361788.

Almost surely, 2^8821788488 is an apocalyptic number.

It is an amenable number.

8821788488 is a deficient number, since it is larger than the sum of its proper divisors (7719064942).

8821788488 is a wasteful number, since it uses less digits than its factorization.

8821788488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102723567 (or 1102723563 counting only the distinct ones).

The product of its digits is 14680064, while the sum is 62.

The square root of 8821788488 is about 93924.3764312545. The cubic root of 8821788488 is about 2066.2627525351.

The spelling of 8821788488 in words is "eight billion, eight hundred twenty-one million, seven hundred eighty-eight thousand, four hundred eighty-eight".