8100007909 has 4 divisors (see below), whose sum is σ = 9257151904. Its totient is φ = 6942863916.

The previous prime is 8100007907. The next prime is 8100007919. The reversal of 8100007909 is 9097000018.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8100007909 - 2¹ = 8100007907 is a prime.

It is a super-2 number, since 2×8100007909² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8100007907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578571987 + ... + 578572000.

It is an arithmetic number, because the mean of its divisors is an integer number (2314287976).

Almost surely, 2^8100007909 is an apocalyptic number.

It is an amenable number.

8100007909 is a deficient number, since it is larger than the sum of its proper divisors (1157143995).

8100007909 is a wasteful number, since it uses less digits than its factorization.

8100007909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157143994.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 8100007909 is about 90000.0439388782. The cubic root of 8100007909 is about 2008.2995038939.

The spelling of 8100007909 in words is "eight billion, one hundred million, seven thousand, nine hundred nine".