12289818450454 has 16 divisors (see below), whose sum is σ = 18790015531680. Its totient is φ = 6027050684160.

The previous prime is 12289818450439. The next prime is 12289818450473. The reversal of 12289818450454 is 45405481898221.

It is a super-2 number, since 2×12289818450454² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a junction number, because it is equal to n+sod(n) for n = 12289818450392 and 12289818450401.

It is a congruent number.

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, 142642794 + ... + 142728925.

It is an arithmetic number, because the mean of its divisors is an integer number (1174375970730).

Almost surely, 2^{12289818450454} is an apocalyptic number.

12289818450454 is a deficient number, since it is larger than the sum of its proper divisors (6500197081226).

12289818450454 is a wasteful number, since it uses less digits than its factorization.

12289818450454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285372135.

The product of its (nonzero) digits is 29491200, while the sum is 61.

The spelling of 12289818450454 in words is "twelve trillion, two hundred eighty-nine billion, eight hundred eighteen million, four hundred fifty thousand, four hundred fifty-four".