8919810939 has 16 divisors (see below), whose sum is σ = 12814898432. Its totient is φ = 5486129568.

The previous prime is 8919810901. The next prime is 8919810967. The reversal of 8919810939 is 9390189198.

8919810939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8919810939 - 2¹³ = 8919802747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8919810979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11562 + ... + 134064.

It is an arithmetic number, because the mean of its divisors is an integer number (800931152).

Almost surely, 2^8919810939 is an apocalyptic number.

8919810939 is a deficient number, since it is larger than the sum of its proper divisors (3895087493).

8919810939 is a wasteful number, since it uses less digits than its factorization.

8919810939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124386.

The product of its (nonzero) digits is 1259712, while the sum is 57.

The square root of 8919810939 is about 94444.7507223138. The cubic root of 8919810939 is about 2073.8876072930.

The spelling of 8919810939 in words is "eight billion, nine hundred nineteen million, eight hundred ten thousand, nine hundred thirty-nine".