52638454769 has 2 divisors, whose sum is σ = 52638454770. Its totient is φ = 52638454768.

The previous prime is 52638454751. The next prime is 52638454789. The reversal of 52638454769 is 96745483625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50535040000 + 2103414769 = 224800^2 + 45863^2 .

It is a cyclic number.

It is not a de Polignac number, because 52638454769 - 2¹⁶ = 52638389233 is a prime.

It is a super-2 number, since 2×52638454769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52638454789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26319227384 + 26319227385.

It is an arithmetic number, because the mean of its divisors is an integer number (26319227385).

Almost surely, 2^52638454769 is an apocalyptic number.

It is an amenable number.

52638454769 is a deficient number, since it is larger than the sum of its proper divisors (1).

52638454769 is an equidigital number, since it uses as much as digits as its factorization.

52638454769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43545600, while the sum is 59.

The spelling of 52638454769 in words is "fifty-two billion, six hundred thirty-eight million, four hundred fifty-four thousand, seven hundred sixty-nine".