51434204473 has 2 divisors, whose sum is σ = 51434204474. Its totient is φ = 51434204472.

The previous prime is 51434204417. The next prime is 51434204489. The reversal of 51434204473 is 37440243415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48476149929 + 2958054544 = 220173^2 + 54388^2 .

It is a cyclic number.

It is not a de Polignac number, because 51434204473 - 2¹⁷ = 51434073401 is a prime.

It is not a weakly prime, because it can be changed into another prime (51434294473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25717102236 + 25717102237.

It is an arithmetic number, because the mean of its divisors is an integer number (25717102237).

Almost surely, 2^51434204473 is an apocalyptic number.

It is an amenable number.

51434204473 is a deficient number, since it is larger than the sum of its proper divisors (1).

51434204473 is an equidigital number, since it uses as much as digits as its factorization.

51434204473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 37.

Adding to 51434204473 its reverse (37440243415), we get a palindrome (88874447888).

The spelling of 51434204473 in words is "fifty-one billion, four hundred thirty-four million, two hundred four thousand, four hundred seventy-three".