11451910209 has 8 divisors (see below), whose sum is σ = 16167402720. Its totient is φ = 7185512256.

The previous prime is 11451910201. The next prime is 11451910237. The reversal of 11451910209 is 90201915411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11451910209 - 2³ = 11451910201 is a prime.

It is a super-2 number, since 2×11451910209² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11451910209.

It is not an unprimeable number, because it can be changed into a prime (11451910201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112273579 + ... + 112273680.

It is an arithmetic number, because the mean of its divisors is an integer number (2020925340).

Almost surely, 2^11451910209 is an apocalyptic number.

It is an amenable number.

11451910209 is a deficient number, since it is larger than the sum of its proper divisors (4715492511).

11451910209 is a wasteful number, since it uses less digits than its factorization.

11451910209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224547279.

The product of its (nonzero) digits is 3240, while the sum is 33.

The spelling of 11451910209 in words is "eleven billion, four hundred fifty-one million, nine hundred ten thousand, two hundred nine".