11613602749 has 12 divisors (see below), whose sum is σ = 13514420700. Its totient is φ = 9951039168.

The previous prime is 11613602719. The next prime is 11613602753. The reversal of 11613602749 is 94720631611.

It can be written as a sum of positive squares in 2 ways, for example, as 2383197124 + 9230405625 = 48818^2 + 96075^2 .

It is not a de Polignac number, because 11613602749 - 2¹⁹ = 11613078461 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 (11613602719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105567 + ... + 185395.

It is an arithmetic number, because the mean of its divisors is an integer number (1126201725).

Almost surely, 2^11613602749 is an apocalyptic number.

It is an amenable number.

11613602749 is a deficient number, since it is larger than the sum of its proper divisors (1900817951).

11613602749 is an equidigital number, since it uses as much as digits as its factorization.

11613602749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82812 (or 82805 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 11613602749 in words is "eleven billion, six hundred thirteen million, six hundred two thousand, seven hundred forty-nine".