12726155554 has 32 divisors (see below), whose sum is σ = 22191120000. Its totient is φ = 5360867712.

The previous prime is 12726155543. The next prime is 12726155567. The reversal of 12726155554 is 45555162721.

12726155554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×12726155554⁴ (a number of 42 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12726155554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278197 + ... + 320695.

It is an arithmetic number, because the mean of its divisors is an integer number (693472500).

Almost surely, 2^12726155554 is an apocalyptic number.

12726155554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12726155554 is a deficient number, since it is larger than the sum of its proper divisors (9464964446).

12726155554 is a wasteful number, since it uses less digits than its factorization.

12726155554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42874.

The product of its digits is 420000, while the sum is 43.

The spelling of 12726155554 in words is "twelve billion, seven hundred twenty-six million, one hundred fifty-five thousand, five hundred fifty-four".