12140735427 has 6 divisors (see below), whose sum is σ = 17536617852. Its totient is φ = 8093823612.

The previous prime is 12140735423. The next prime is 12140735471. The reversal of 12140735427 is 72453704121.

12140735427 is a `hidden beast` number, since 1 + 2 + 1 + 40 + 73 + 542 + 7 = 666.

It is not a de Polignac number, because 12140735427 - 2² = 12140735423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12140735391 and 12140735400.

It is not an unprimeable number, because it can be changed into a prime (12140735423) 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 5 ways as a sum of consecutive naturals, for example, 674485293 + ... + 674485310.

It is an arithmetic number, because the mean of its divisors is an integer number (2922769642).

Almost surely, 2^12140735427 is an apocalyptic number.

12140735427 is a deficient number, since it is larger than the sum of its proper divisors (5395882425).

12140735427 is a wasteful number, since it uses less digits than its factorization.

12140735427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348970609 (or 1348970606 counting only the distinct ones).

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

The spelling of 12140735427 in words is "twelve billion, one hundred forty million, seven hundred thirty-five thousand, four hundred twenty-seven".