29653738109 has 2 divisors, whose sum is σ = 29653738110. Its totient is φ = 29653738108.

The previous prime is 29653738069. The next prime is 29653738117. The reversal of 29653738109 is 90183735692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17370449209 + 12283288900 = 131797^2 + 110830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29653738109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29653738189) 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, 14826869054 + 14826869055.

It is an arithmetic number, because the mean of its divisors is an integer number (14826869055).

Almost surely, 2^29653738109 is an apocalyptic number.

It is an amenable number.

29653738109 is a deficient number, since it is larger than the sum of its proper divisors (1).

29653738109 is an equidigital number, since it uses as much as digits as its factorization.

29653738109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 29653738109 in words is "twenty-nine billion, six hundred fifty-three million, seven hundred thirty-eight thousand, one hundred nine".