11157347509 has 16 divisors (see below), whose sum is σ = 14390133120. Its totient is φ = 8394240960.

The previous prime is 11157347489. The next prime is 11157347543. The reversal of 11157347509 is 90574375111.

11157347509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11157347509 - 2⁵ = 11157347477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11157347009) 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 15 ways as a sum of consecutive naturals, for example, 2496054 + ... + 2500519.

It is an arithmetic number, because the mean of its divisors is an integer number (899383320).

Almost surely, 2^11157347509 is an apocalyptic number.

It is an amenable number.

11157347509 is a deficient number, since it is larger than the sum of its proper divisors (3232785611).

11157347509 is a wasteful number, since it uses less digits than its factorization.

11157347509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996620.

The product of its (nonzero) digits is 132300, while the sum is 43.

The spelling of 11157347509 in words is "eleven billion, one hundred fifty-seven million, three hundred forty-seven thousand, five hundred nine".