203441640769 has 2 divisors, whose sum is σ = 203441640770. Its totient is φ = 203441640768.

The previous prime is 203441640761. The next prime is 203441640823. The reversal of 203441640769 is 967046144302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133064448400 + 70377192369 = 364780^2 + 265287^2 .

It is a cyclic number.

It is not a de Polignac number, because 203441640769 - 2³ = 203441640761 is a prime.

It is a super-2 number, since 2×203441640769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203441640761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101720820384 + 101720820385.

It is an arithmetic number, because the mean of its divisors is an integer number (101720820385).

Almost surely, 2^203441640769 is an apocalyptic number.

It is an amenable number.

203441640769 is a deficient number, since it is larger than the sum of its proper divisors (1).

203441640769 is an equidigital number, since it uses as much as digits as its factorization.

203441640769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 203441640769 in words is "two hundred three billion, four hundred forty-one million, six hundred forty thousand, seven hundred sixty-nine".