11735230509 has 80 divisors (see below), whose sum is σ = 20213582400. Its totient is φ = 6734762496.

The previous prime is 11735230489. The next prime is 11735230511. The reversal of 11735230509 is 90503253711.

11735230509 is a `hidden beast` number, since 1 + 1 + 73 + 52 + 30 + 509 = 666.

It is not a de Polignac number, because 11735230509 - 2⁹ = 11735229997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11735230519) 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 79 ways as a sum of consecutive naturals, for example, 750994 + ... + 766460.

It is an arithmetic number, because the mean of its divisors is an integer number (252669780).

Almost surely, 2^11735230509 is an apocalyptic number.

11735230509 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11735230509 is a deficient number, since it is larger than the sum of its proper divisors (8478351891).

11735230509 is a wasteful number, since it uses less digits than its factorization.

11735230509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15544 (or 15535 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The spelling of 11735230509 in words is "eleven billion, seven hundred thirty-five million, two hundred thirty thousand, five hundred nine".