51046515269 has 2 divisors, whose sum is σ = 51046515270. Its totient is φ = 51046515268.

The previous prime is 51046515253. The next prime is 51046515283. The reversal of 51046515269 is 96251564015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42585275044 + 8461240225 = 206362^2 + 91985^2 .

It is a cyclic number.

It is not a de Polignac number, because 51046515269 - 2⁴ = 51046515253 is a prime.

It is a super-2 number, since 2×51046515269² (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 (51046518269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25523257634 + 25523257635.

It is an arithmetic number, because the mean of its divisors is an integer number (25523257635).

Almost surely, 2^51046515269 is an apocalyptic number.

It is an amenable number.

51046515269 is a deficient number, since it is larger than the sum of its proper divisors (1).

51046515269 is an equidigital number, since it uses as much as digits as its factorization.

51046515269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 51046515269 in words is "fifty-one billion, forty-six million, five hundred fifteen thousand, two hundred sixty-nine".