11748857049 has 24 divisors (see below), whose sum is σ = 17854359432. Its totient is φ = 7434996480.

The previous prime is 11748857009. The next prime is 11748857083. The reversal of 11748857049 is 94075884711.

11748857049 is a `hidden beast` number, since 117 + 488 + 5 + 7 + 0 + 49 = 666.

11748857049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 444914649 + 11303942400 = 21093^2 + 106320^2 .

It is not a de Polignac number, because 11748857049 - 2¹⁶ = 11748791513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11748856986 and 11748857004.

It is not an unprimeable number, because it can be changed into a prime (11748857009) 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 23 ways as a sum of consecutive naturals, for example, 416614 + ... + 443919.

It is an arithmetic number, because the mean of its divisors is an integer number (743931643).

Almost surely, 2^11748857049 is an apocalyptic number.

It is an amenable number.

11748857049 is a deficient number, since it is larger than the sum of its proper divisors (6105502383).

11748857049 is a wasteful number, since it uses less digits than its factorization.

11748857049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860617 (or 860614 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 11748857049 in words is "eleven billion, seven hundred forty-eight million, eight hundred fifty-seven thousand, forty-nine".