12641804951 has 2 divisors, whose sum is σ = 12641804952. Its totient is φ = 12641804950.

The previous prime is 12641804899. The next prime is 12641804953. The reversal of 12641804951 is 15940814621.

It is a strong prime.

It is an emirp because it is prime and its reverse (15940814621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12641804951 - 2⁶ = 12641804887 is a prime.

It is a super-2 number, since 2×12641804951² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 12641804953, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12641804899 and 12641804908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12641804953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6320902475 + 6320902476.

It is an arithmetic number, because the mean of its divisors is an integer number (6320902476).

Almost surely, 2^12641804951 is an apocalyptic number.

12641804951 is a deficient number, since it is larger than the sum of its proper divisors (1).

12641804951 is an equidigital number, since it uses as much as digits as its factorization.

12641804951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 12641804951 in words is "twelve billion, six hundred forty-one million, eight hundred four thousand, nine hundred fifty-one".