29128248893 has 2 divisors, whose sum is σ = 29128248894. Its totient is φ = 29128248892.

The previous prime is 29128248859. The next prime is 29128248907. The reversal of 29128248893 is 39884282192.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27869631364 + 1258617529 = 166942^2 + 35477^2 .

It is a cyclic number.

It is not a de Polignac number, because 29128248893 - 2⁶ = 29128248829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29128218893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14564124446 + 14564124447.

It is an arithmetic number, because the mean of its divisors is an integer number (14564124447).

Almost surely, 2^29128248893 is an apocalyptic number.

It is an amenable number.

29128248893 is a deficient number, since it is larger than the sum of its proper divisors (1).

29128248893 is an equidigital number, since it uses as much as digits as its factorization.

29128248893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 56.

The spelling of 29128248893 in words is "twenty-nine billion, one hundred twenty-eight million, two hundred forty-eight thousand, eight hundred ninety-three".