11889649001 has 4 divisors (see below), whose sum is σ = 11960844672. Its totient is φ = 11818453332.

The previous prime is 11889648973. The next prime is 11889649021. The reversal of 11889649001 is 10094698811.

11889649001 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 11889649001 - 2⁶ = 11889648937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11889649021) 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, 35597585 + ... + 35597918.

It is an arithmetic number, because the mean of its divisors is an integer number (2990211168).

Almost surely, 2^11889649001 is an apocalyptic number.

It is an amenable number.

11889649001 is a deficient number, since it is larger than the sum of its proper divisors (71195671).

11889649001 is an equidigital number, since it uses as much as digits as its factorization.

11889649001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71195670.

The product of its (nonzero) digits is 124416, while the sum is 47.

The spelling of 11889649001 in words is "eleven billion, eight hundred eighty-nine million, six hundred forty-nine thousand, one".