12641378314 has 4 divisors (see below), whose sum is σ = 18962067474. Its totient is φ = 6320689156.

The previous prime is 12641378311. The next prime is 12641378317. The reversal of 12641378314 is 41387314621.

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

It is an interprime number because it is at equal distance from previous prime (12641378311) and next prime (12641378317).

It can be written as a sum of positive squares in only one way, i.e., 8156799225 + 4484579089 = 90315^2 + 66967^2 .

It is not an unprimeable number, because it can be changed into a prime (12641378311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160344577 + ... + 3160344580.

Almost surely, 2^12641378314 is an apocalyptic number.

12641378314 is a deficient number, since it is larger than the sum of its proper divisors (6320689160).

12641378314 is an equidigital number, since it uses as much as digits as its factorization.

12641378314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6320689159.

The product of its digits is 96768, while the sum is 40.

The spelling of 12641378314 in words is "twelve billion, six hundred forty-one million, three hundred seventy-eight thousand, three hundred fourteen".