11731876749 has 48 divisors (see below), whose sum is σ = 18493675200. Its totient is φ = 7137704448.

The previous prime is 11731876733. The next prime is 11731876763. The reversal of 11731876749 is 94767813711.

It is a happy number.

It is not a de Polignac number, because 11731876749 - 2⁴ = 11731876733 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11731876695 and 11731876704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11731878749) 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 47 ways as a sum of consecutive naturals, for example, 908067 + ... + 920895.

It is an arithmetic number, because the mean of its divisors is an integer number (385284900).

Almost surely, 2^11731876749 is an apocalyptic number.

It is an amenable number.

11731876749 is a deficient number, since it is larger than the sum of its proper divisors (6761798451).

11731876749 is a wasteful number, since it uses less digits than its factorization.

11731876749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13034 (or 13031 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 54.

The spelling of 11731876749 in words is "eleven billion, seven hundred thirty-one million, eight hundred seventy-six thousand, seven hundred forty-nine".