51023134469 has 2 divisors, whose sum is σ = 51023134470. Its totient is φ = 51023134468.

The previous prime is 51023134367. The next prime is 51023134483. The reversal of 51023134469 is 96443132015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45392433025 + 5630701444 = 213055^2 + 75038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51023134469 is a prime.

It is a super-2 number, since 2×51023134469² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51023139469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511567234 + 25511567235.

It is an arithmetic number, because the mean of its divisors is an integer number (25511567235).

Almost surely, 2^51023134469 is an apocalyptic number.

It is an amenable number.

51023134469 is a deficient number, since it is larger than the sum of its proper divisors (1).

51023134469 is an equidigital number, since it uses as much as digits as its factorization.

51023134469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 51023134469 in words is "fifty-one billion, twenty-three million, one hundred thirty-four thousand, four hundred sixty-nine".