12127135877 has 8 divisors (see below), whose sum is σ = 12295716864. Its totient is φ = 11958621408.

The previous prime is 12127135837. The next prime is 12127135883. The reversal of 12127135877 is 77853172121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12127135877 - 2¹⁰ = 12127134853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127135807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434918 + ... + 461960.

It is an arithmetic number, because the mean of its divisors is an integer number (1536964608).

Almost surely, 2^12127135877 is an apocalyptic number.

It is an amenable number.

12127135877 is a deficient number, since it is larger than the sum of its proper divisors (168580987).

12127135877 is an equidigital number, since it uses as much as digits as its factorization.

12127135877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33259.

The product of its digits is 164640, while the sum is 44.

The spelling of 12127135877 in words is "twelve billion, one hundred twenty-seven million, one hundred thirty-five thousand, eight hundred seventy-seven".