12388061890555 has 8 divisors (see below), whose sum is σ = 16009187674032. Its totient is φ = 9148107242208.

The previous prime is 12388061890513. The next prime is 12388061890571. The reversal of 12388061890555 is 55509816088321.

12388061890555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12388061890555 - 2⁷ = 12388061890427 is a prime.

It is a super-2 number, since 2×12388061890555² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12388061890493 and 12388061890502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95292783709 + ... + 95292783838.

It is an arithmetic number, because the mean of its divisors is an integer number (2001148459254).

Almost surely, 2^{12388061890555} is an apocalyptic number.

12388061890555 is a deficient number, since it is larger than the sum of its proper divisors (3621125783477).

12388061890555 is a wasteful number, since it uses less digits than its factorization.

12388061890555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190585567565.

The product of its (nonzero) digits is 20736000, while the sum is 61.

It can be divided in two parts, 1238806 and 1890555, that added together give a square (3129361 = 1769²).

The spelling of 12388061890555 in words is "twelve trillion, three hundred eighty-eight billion, sixty-one million, eight hundred ninety thousand, five hundred fifty-five".