51012797471 has 2 divisors, whose sum is σ = 51012797472. Its totient is φ = 51012797470.

The previous prime is 51012797467. The next prime is 51012797483. The reversal of 51012797471 is 17479721015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51012797471 - 2² = 51012797467 is a prime.

It is a super-3 number, since 3×51012797471³ (a number of 33 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51012797401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25506398735 + 25506398736.

It is an arithmetic number, because the mean of its divisors is an integer number (25506398736).

Almost surely, 2^51012797471 is an apocalyptic number.

51012797471 is a deficient number, since it is larger than the sum of its proper divisors (1).

51012797471 is an equidigital number, since it uses as much as digits as its factorization.

51012797471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123480, while the sum is 44.

The spelling of 51012797471 in words is "fifty-one billion, twelve million, seven hundred ninety-seven thousand, four hundred seventy-one".