20038435349 has 2 divisors, whose sum is σ = 20038435350. Its totient is φ = 20038435348.

The previous prime is 20038435303. The next prime is 20038435357. The reversal of 20038435349 is 94353483002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16677914449 + 3360520900 = 129143^2 + 57970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20038435349 is a prime.

It is a super-3 number, since 3×20038435349³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20038435369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10019217674 + 10019217675.

It is an arithmetic number, because the mean of its divisors is an integer number (10019217675).

Almost surely, 2^20038435349 is an apocalyptic number.

It is an amenable number.

20038435349 is a deficient number, since it is larger than the sum of its proper divisors (1).

20038435349 is an equidigital number, since it uses as much as digits as its factorization.

20038435349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 20038435349 in words is "twenty billion, thirty-eight million, four hundred thirty-five thousand, three hundred forty-nine".