11535414989 has 4 divisors (see below), whose sum is σ = 13183331424. Its totient is φ = 9887498556.

The previous prime is 11535414977. The next prime is 11535415007. The reversal of 11535414989 is 98941453511.

It is a happy number.

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 11535414989 - 2²⁸ = 11266979533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11535410989) 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, 823958207 + ... + 823958220.

It is an arithmetic number, because the mean of its divisors is an integer number (3295832856).

Almost surely, 2^11535414989 is an apocalyptic number.

It is an amenable number.

11535414989 is a deficient number, since it is larger than the sum of its proper divisors (1647916435).

11535414989 is an equidigital number, since it uses as much as digits as its factorization.

11535414989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647916434.

The product of its digits is 777600, while the sum is 50.

The spelling of 11535414989 in words is "eleven billion, five hundred thirty-five million, four hundred fourteen thousand, nine hundred eighty-nine".