11839816578225 has 48 divisors (see below), whose sum is σ = 19867604106240. Its totient is φ = 6220383086400.

The previous prime is 11839816578211. The next prime is 11839816578229. The reversal of 11839816578225 is 52287561893811.

It is not a de Polignac number, because 11839816578225 - 2¹⁰ = 11839816577201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11839816578229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5384196 + ... + 7257354.

It is an arithmetic number, because the mean of its divisors is an integer number (413908418880).

Almost surely, 2^{11839816578225} is an apocalyptic number.

11839816578225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11839816578225 is a deficient number, since it is larger than the sum of its proper divisors (8027787528015).

11839816578225 is a wasteful number, since it uses less digits than its factorization.

11839816578225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874430 (or 1874425 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 66.

The spelling of 11839816578225 in words is "eleven trillion, eight hundred thirty-nine billion, eight hundred sixteen million, five hundred seventy-eight thousand, two hundred twenty-five".