8887999999 has 2 divisors, whose sum is σ = 8888000000. Its totient is φ = 8887999998.

The previous prime is 8887999973. The next prime is 8888000057. The reversal of 8887999999 is 9999997888.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8887999999 - 2⁹ = 8887999487 is a prime.

8887999999 is a modest number, since divided by 99999 gives 88879 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8887999969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4443999999 + 4444000000.

It is an arithmetic number, because the mean of its divisors is an integer number (4444000000).

Almost surely, 2^8887999999 is an apocalyptic number.

8887999999 is a deficient number, since it is larger than the sum of its proper divisors (1).

8887999999 is an equidigital number, since it uses as much as digits as its factorization.

8887999999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1904684544, while the sum is 85.

The square root of 8887999999 is about 94276.1899898378. The cubic root of 8887999999 is about 2071.4192853119.

The spelling of 8887999999 in words is "eight billion, eight hundred eighty-seven million, nine hundred ninety-nine thousand, nine hundred ninety-nine".