11135591447 has 16 divisors (see below), whose sum is σ = 12337805952. Its totient is φ = 10004866560.

The previous prime is 11135591429. The next prime is 11135591461. The reversal of 11135591447 is 74419553111.

It is a cyclic number.

It is not a de Polignac number, because 11135591447 - 2¹⁶ = 11135525911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11135591417) 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 15 ways as a sum of consecutive naturals, for example, 133679 + ... + 200352.

It is an arithmetic number, because the mean of its divisors is an integer number (771112872).

Almost surely, 2^11135591447 is an apocalyptic number.

11135591447 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11135591447 is a deficient number, since it is larger than the sum of its proper divisors (1202214505).

11135591447 is a wasteful number, since it uses less digits than its factorization.

11135591447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334138.

The product of its digits is 75600, while the sum is 41.

The spelling of 11135591447 in words is "eleven billion, one hundred thirty-five million, five hundred ninety-one thousand, four hundred forty-seven".