8539889901 has 16 divisors (see below), whose sum is σ = 11416738944. Its totient is φ = 5678172864.

The previous prime is 8539889899. The next prime is 8539889909. The reversal of 8539889901 is 1099889358.

It is not a de Polignac number, because 8539889901 - 2¹ = 8539889899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539889909) 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, 2217960 + ... + 2221806.

It is an arithmetic number, because the mean of its divisors is an integer number (713546184).

Almost surely, 2^8539889901 is an apocalyptic number.

It is an amenable number.

8539889901 is a deficient number, since it is larger than the sum of its proper divisors (2876849043).

8539889901 is a wasteful number, since it uses less digits than its factorization.

8539889901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620.

The product of its (nonzero) digits is 5598720, while the sum is 60.

The square root of 8539889901 is about 92411.5247195933. The cubic root of 8539889901 is about 2044.0150565263.

The spelling of 8539889901 in words is "eight billion, five hundred thirty-nine million, eight hundred eighty-nine thousand, nine hundred one".