12375282721555 has 16 divisors (see below), whose sum is σ = 16142137298784. Its totient is φ = 9053262178560.

The previous prime is 12375282721553. The next prime is 12375282721573. The reversal of 12375282721555 is 55512728257321.

It is not a de Polignac number, because 12375282721555 - 2¹ = 12375282721553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12375282721496 and 12375282721505.

It is not an unprimeable number, because it can be changed into a prime (12375282721553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889661106 + ... + 889675015.

It is an arithmetic number, because the mean of its divisors is an integer number (1008883581174).

Almost surely, 2^{12375282721555} is an apocalyptic number.

12375282721555 is a deficient number, since it is larger than the sum of its proper divisors (3766854577229).

12375282721555 is a wasteful number, since it uses less digits than its factorization.

12375282721555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779336246.

The product of its digits is 11760000, while the sum is 55.

The spelling of 12375282721555 in words is "twelve trillion, three hundred seventy-five billion, two hundred eighty-two million, seven hundred twenty-one thousand, five hundred fifty-five".