51036664379 has 2 divisors, whose sum is σ = 51036664380. Its totient is φ = 51036664378.

The previous prime is 51036664321. The next prime is 51036664381. The reversal of 51036664379 is 97346663015.

51036664379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51036664379 is a prime.

It is a super-2 number, since 2×51036664379² (a number of 22 digits) contains 22 as substring.

Together with 51036664381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51036864379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25518332189 + 25518332190.

It is an arithmetic number, because the mean of its divisors is an integer number (25518332190).

Almost surely, 2^51036664379 is an apocalyptic number.

51036664379 is a deficient number, since it is larger than the sum of its proper divisors (1).

51036664379 is an equidigital number, since it uses as much as digits as its factorization.

51036664379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 51036664379 in words is "fifty-one billion, thirty-six million, six hundred sixty-four thousand, three hundred seventy-nine".