12706400054 has 16 divisors (see below), whose sum is σ = 20011114800. Its totient is φ = 6042568224.

The previous prime is 12706400023. The next prime is 12706400099. The reversal of 12706400054 is 45000460721.

It is a super-2 number, since 2×12706400054² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631009 + ... + 1638780.

It is an arithmetic number, because the mean of its divisors is an integer number (1250694675).

Almost surely, 2^12706400054 is an apocalyptic number.

12706400054 is a deficient number, since it is larger than the sum of its proper divisors (7304714746).

12706400054 is a wasteful number, since it uses less digits than its factorization.

12706400054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269887.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 12706400054 its reverse (45000460721), we get a palindrome (57706860775).

The spelling of 12706400054 in words is "twelve billion, seven hundred six million, four hundred thousand, fifty-four".