29696978393 has 2 divisors, whose sum is σ = 29696978394. Its totient is φ = 29696978392.

The previous prime is 29696978347. The next prime is 29696978413. The reversal of 29696978393 is 39387969692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29696939584 + 38809 = 172328^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 29696978393 - 2⁸ = 29696978137 is a prime.

It is not a weakly prime, because it can be changed into another prime (29696978323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14848489196 + 14848489197.

It is an arithmetic number, because the mean of its divisors is an integer number (14848489197).

Almost surely, 2^29696978393 is an apocalyptic number.

It is an amenable number.

29696978393 is a deficient number, since it is larger than the sum of its proper divisors (1).

29696978393 is an equidigital number, since it uses as much as digits as its factorization.

29696978393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238085568, while the sum is 71.

The spelling of 29696978393 in words is "twenty-nine billion, six hundred ninety-six million, nine hundred seventy-eight thousand, three hundred ninety-three".