51514861319 has 2 divisors, whose sum is σ = 51514861320. Its totient is φ = 51514861318.

The previous prime is 51514861249. The next prime is 51514861331. The reversal of 51514861319 is 91316841515.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51514861319 is a prime.

It is a super-2 number, since 2×51514861319² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51514861319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51514861369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25757430659 + 25757430660.

It is an arithmetic number, because the mean of its divisors is an integer number (25757430660).

Almost surely, 2^51514861319 is an apocalyptic number.

51514861319 is a deficient number, since it is larger than the sum of its proper divisors (1).

51514861319 is an equidigital number, since it uses as much as digits as its factorization.

51514861319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 44.

The spelling of 51514861319 in words is "fifty-one billion, five hundred fourteen million, eight hundred sixty-one thousand, three hundred nineteen".