11899147369 has 4 divisors (see below), whose sum is σ = 11900108880. Its totient is φ = 11898185860.

The previous prime is 11899147367. The next prime is 11899147373. The reversal of 11899147369 is 96374199811.

11899147369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11899147369 - 2¹ = 11899147367 is a prime.

It is a super-2 number, since 2×11899147369² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11899147361) 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 3 ways as a sum of consecutive naturals, for example, 461947 + ... + 487024.

It is an arithmetic number, because the mean of its divisors is an integer number (2975027220).

Almost surely, 2^11899147369 is an apocalyptic number.

It is an amenable number.

11899147369 is a deficient number, since it is larger than the sum of its proper divisors (961511).

11899147369 is an equidigital number, since it uses as much as digits as its factorization.

11899147369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961510.

The product of its digits is 2939328, while the sum is 58.

The spelling of 11899147369 in words is "eleven billion, eight hundred ninety-nine million, one hundred forty-seven thousand, three hundred sixty-nine".