12154350787057 has 6 divisors (see below), whose sum is σ = 12827722022178. Its totient is φ = 11514648113712.

The previous prime is 12154350787039. The next prime is 12154350787081. The reversal of 12154350787057 is 75078705345121.

It can be written as a sum of positive squares in only one way, i.e., 8361298511281 + 3793052275776 = 2891591^2 + 1947576^2 .

It is not a de Polignac number, because 12154350787057 - 2¹⁵ = 12154350754289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12154350786989 and 12154350787007.

It is not an unprimeable number, because it can be changed into a prime (12154350757057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16834280508 + ... + 16834281229.

It is an arithmetic number, because the mean of its divisors is an integer number (2137953670363).

Almost surely, 2^{12154350787057} is an apocalyptic number.

It is an amenable number.

12154350787057 is a deficient number, since it is larger than the sum of its proper divisors (673371235121).

12154350787057 is an equidigital number, since it uses as much as digits as its factorization.

12154350787057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33668561775 (or 33668561756 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 55.

The spelling of 12154350787057 in words is "twelve trillion, one hundred fifty-four billion, three hundred fifty million, seven hundred eighty-seven thousand, fifty-seven".