51534733769 has 2 divisors, whose sum is σ = 51534733770. Its totient is φ = 51534733768.

The previous prime is 51534733753. The next prime is 51534733787. The reversal of 51534733769 is 96733743515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36114061369 + 15420672400 = 190037^2 + 124180^2 .

It is a cyclic number.

It is not a de Polignac number, because 51534733769 - 2⁴ = 51534733753 is a prime.

It is a super-2 number, since 2×51534733769² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51534733769.

It is not a weakly prime, because it can be changed into another prime (51534733729) 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, 25767366884 + 25767366885.

It is an arithmetic number, because the mean of its divisors is an integer number (25767366885).

Almost surely, 2^51534733769 is an apocalyptic number.

It is an amenable number.

51534733769 is a deficient number, since it is larger than the sum of its proper divisors (1).

51534733769 is an equidigital number, since it uses as much as digits as its factorization.

51534733769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7144200, while the sum is 53.

The spelling of 51534733769 in words is "fifty-one billion, five hundred thirty-four million, seven hundred thirty-three thousand, seven hundred sixty-nine".