633005378869 has 2 divisors, whose sum is σ = 633005378870. Its totient is φ = 633005378868.

The previous prime is 633005378867. The next prime is 633005378933. The reversal of 633005378869 is 968873500336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546017544900 + 86987833969 = 738930^2 + 294937^2 .

It is a cyclic number.

It is not a de Polignac number, because 633005378869 - 2¹ = 633005378867 is a prime.

It is a super-2 number, since 2×633005378869² (a number of 24 digits) contains 22 as substring.

Together with 633005378867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (633005378867) 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, 316502689434 + 316502689435.

It is an arithmetic number, because the mean of its divisors is an integer number (316502689435).

Almost surely, 2^633005378869 is an apocalyptic number.

It is an amenable number.

633005378869 is a deficient number, since it is larger than the sum of its proper divisors (1).

633005378869 is an equidigital number, since it uses as much as digits as its factorization.

633005378869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 58.

The spelling of 633005378869 in words is "six hundred thirty-three billion, five million, three hundred seventy-eight thousand, eight hundred sixty-nine".