51344767519 has 2 divisors, whose sum is σ = 51344767520. Its totient is φ = 51344767518.

The previous prime is 51344767501. The next prime is 51344767559. The reversal of 51344767519 is 91576744315.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51344767519 is a prime.

It is a super-2 number, since 2×51344767519² (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 (51344767559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672383759 + 25672383760.

It is an arithmetic number, because the mean of its divisors is an integer number (25672383760).

Almost surely, 2^51344767519 is an apocalyptic number.

51344767519 is a deficient number, since it is larger than the sum of its proper divisors (1).

51344767519 is an equidigital number, since it uses as much as digits as its factorization.

51344767519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The spelling of 51344767519 in words is "fifty-one billion, three hundred forty-four million, seven hundred sixty-seven thousand, five hundred nineteen".