12127374405 has 128 divisors (see below), whose sum is σ = 23430643200. Its totient is φ = 5928579072.

The previous prime is 12127374341. The next prime is 12127374419. The reversal of 12127374405 is 50447372121.

12127374405 is a `hidden beast` number, since 1 + 212 + 7 + 37 + 4 + 405 = 666.

It is not a de Polignac number, because 12127374405 - 2⁶ = 12127374341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12127374405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21772387 + ... + 21772943.

It is an arithmetic number, because the mean of its divisors is an integer number (183051900).

Almost surely, 2^12127374405 is an apocalyptic number.

12127374405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12127374405 is a deficient number, since it is larger than the sum of its proper divisors (11303268795).

12127374405 is a wasteful number, since it uses less digits than its factorization.

12127374405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 12127374405 in words is "twelve billion, one hundred twenty-seven million, three hundred seventy-four thousand, four hundred five".