12127610471 has 4 divisors (see below), whose sum is σ = 12518823744. Its totient is φ = 11736397200.

The previous prime is 12127610447. The next prime is 12127610489. The reversal of 12127610471 is 17401672121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12127610471 is a prime.

It is a super-3 number, since 3×12127610471³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127610431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 195606590 + ... + 195606651.

It is an arithmetic number, because the mean of its divisors is an integer number (3129705936).

Almost surely, 2^12127610471 is an apocalyptic number.

12127610471 is a deficient number, since it is larger than the sum of its proper divisors (391213273).

12127610471 is an equidigital number, since it uses as much as digits as its factorization.

12127610471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391213272.

The product of its (nonzero) digits is 4704, while the sum is 32.

The spelling of 12127610471 in words is "twelve billion, one hundred twenty-seven million, six hundred ten thousand, four hundred seventy-one".