51360777719 has 2 divisors, whose sum is σ = 51360777720. Its totient is φ = 51360777718.

The previous prime is 51360777703. The next prime is 51360777737. The reversal of 51360777719 is 91777706315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51360777719 - 2⁴ = 51360777703 is a prime.

It is a super-2 number, since 2×51360777719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51360777749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25680388859 + 25680388860.

It is an arithmetic number, because the mean of its divisors is an integer number (25680388860).

Almost surely, 2^51360777719 is an apocalyptic number.

51360777719 is a deficient number, since it is larger than the sum of its proper divisors (1).

51360777719 is an equidigital number, since it uses as much as digits as its factorization.

51360777719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944810, while the sum is 53.

The spelling of 51360777719 in words is "fifty-one billion, three hundred sixty million, seven hundred seventy-seven thousand, seven hundred nineteen".