12127747662 has 12 divisors (see below), whose sum is σ = 26276786640. Its totient is φ = 4042582548.

The previous prime is 12127747591. The next prime is 12127747663. The reversal of 12127747662 is 26674772121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127747663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336881862 + ... + 336881897.

It is an arithmetic number, because the mean of its divisors is an integer number (2189732220).

Almost surely, 2^12127747662 is an apocalyptic number.

12127747662 is an abundant number, since it is smaller than the sum of its proper divisors (14149038978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12127747662 is a wasteful number, since it uses less digits than its factorization.

12127747662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673763767 (or 673763764 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The spelling of 12127747662 in words is "twelve billion, one hundred twenty-seven million, seven hundred forty-seven thousand, six hundred sixty-two".