51382283969 has 2 divisors, whose sum is σ = 51382283970. Its totient is φ = 51382283968.

The previous prime is 51382283959. The next prime is 51382283993. The reversal of 51382283969 is 96938228315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31077458944 + 20304825025 = 176288^2 + 142495^2 .

It is a cyclic number.

It is not a de Polignac number, because 51382283969 - 2¹² = 51382279873 is a prime.

It is a super-2 number, since 2×51382283969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51382283959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25691141984 + 25691141985.

It is an arithmetic number, because the mean of its divisors is an integer number (25691141985).

Almost surely, 2^51382283969 is an apocalyptic number.

It is an amenable number.

51382283969 is a deficient number, since it is larger than the sum of its proper divisors (1).

51382283969 is an equidigital number, since it uses as much as digits as its factorization.

51382283969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5598720, while the sum is 56.

The spelling of 51382283969 in words is "fifty-one billion, three hundred eighty-two million, two hundred eighty-three thousand, nine hundred sixty-nine".