8919856939 has 16 divisors (see below), whose sum is σ = 10858434048. Its totient is φ = 7152746112.

The previous prime is 8919856927. The next prime is 8919856961. The reversal of 8919856939 is 9396589198.

8919856939 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8919856939 - 2⁹ = 8919856427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8919856139) 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, 204549 + ... + 244294.

It is an arithmetic number, because the mean of its divisors is an integer number (678652128).

Almost surely, 2^8919856939 is an apocalyptic number.

8919856939 is a deficient number, since it is larger than the sum of its proper divisors (1938577109).

8919856939 is a wasteful number, since it uses less digits than its factorization.

8919856939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449034.

The product of its digits is 37791360, while the sum is 67.

The square root of 8919856939 is about 94444.9942506219. The cubic root of 8919856939 is about 2073.8911723411.

The spelling of 8919856939 in words is "eight billion, nine hundred nineteen million, eight hundred fifty-six thousand, nine hundred thirty-nine".