29388940513 has 2 divisors, whose sum is σ = 29388940514. Its totient is φ = 29388940512.

The previous prime is 29388940487. The next prime is 29388940561. The reversal of 29388940513 is 31504988392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21488041744 + 7900898769 = 146588^2 + 88887^2 .

It is a cyclic number.

It is not a de Polignac number, because 29388940513 - 2⁵ = 29388940481 is a prime.

It is not a weakly prime, because it can be changed into another prime (29388940613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14694470256 + 14694470257.

It is an arithmetic number, because the mean of its divisors is an integer number (14694470257).

Almost surely, 2^29388940513 is an apocalyptic number.

It is an amenable number.

29388940513 is a deficient number, since it is larger than the sum of its proper divisors (1).

29388940513 is an equidigital number, since it uses as much as digits as its factorization.

29388940513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 29388940513 in words is "twenty-nine billion, three hundred eighty-eight million, nine hundred forty thousand, five hundred thirteen".