11509797741 has 16 divisors (see below), whose sum is σ = 16569396480. Its totient is φ = 7064735040.

The previous prime is 11509797737. The next prime is 11509797743. The reversal of 11509797741 is 14779790511.

11509797741 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 11509797741 - 2² = 11509797737 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11509797743) 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, 364165 + ... + 394506.

It is an arithmetic number, because the mean of its divisors is an integer number (1035587280).

Almost surely, 2^11509797741 is an apocalyptic number.

It is an amenable number.

11509797741 is a deficient number, since it is larger than the sum of its proper divisors (5059598739).

11509797741 is a wasteful number, since it uses less digits than its factorization.

11509797741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759076.

The product of its (nonzero) digits is 555660, while the sum is 51.

The spelling of 11509797741 in words is "eleven billion, five hundred nine million, seven hundred ninety-seven thousand, seven hundred forty-one".