12642632927 has 16 divisors (see below), whose sum is σ = 13449346560. Its totient is φ = 11850263712.

The previous prime is 12642632923. The next prime is 12642632953. The reversal of 12642632927 is 72923624621.

It is not a de Polignac number, because 12642632927 - 2² = 12642632923 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 (12642632923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2919638 + ... + 2923964.

It is an arithmetic number, because the mean of its divisors is an integer number (840584160).

Almost surely, 2^12642632927 is an apocalyptic number.

12642632927 is a deficient number, since it is larger than the sum of its proper divisors (806713633).

12642632927 is a wasteful number, since it uses less digits than its factorization.

12642632927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942.

The product of its digits is 435456, while the sum is 44.

The spelling of 12642632927 in words is "twelve billion, six hundred forty-two million, six hundred thirty-two thousand, nine hundred twenty-seven".