51148659719 has 2 divisors, whose sum is σ = 51148659720. Its totient is φ = 51148659718.

The previous prime is 51148659707. The next prime is 51148659721. The reversal of 51148659719 is 91795684115.

51148659719 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 not a de Polignac number, because 51148659719 - 2²⁰ = 51147611143 is a prime.

It is a super-2 number, since 2×51148659719² (a number of 22 digits) contains 22 as substring.

Together with 51148659721, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51148659739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25574329859 + 25574329860.

It is an arithmetic number, because the mean of its divisors is an integer number (25574329860).

Almost surely, 2^51148659719 is an apocalyptic number.

51148659719 is a deficient number, since it is larger than the sum of its proper divisors (1).

51148659719 is an equidigital number, since it uses as much as digits as its factorization.

51148659719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 56.

The spelling of 51148659719 in words is "fifty-one billion, one hundred forty-eight million, six hundred fifty-nine thousand, seven hundred nineteen".