29213215789 has 2 divisors, whose sum is σ = 29213215790. Its totient is φ = 29213215788.

The previous prime is 29213215777. The next prime is 29213215873. The reversal of 29213215789 is 98751231292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28106522500 + 1106693289 = 167650^2 + 33267^2 .

It is a cyclic number.

It is not a de Polignac number, because 29213215789 - 2²⁷ = 29078998061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29213215709) 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, 14606607894 + 14606607895.

It is an arithmetic number, because the mean of its divisors is an integer number (14606607895).

Almost surely, 2^29213215789 is an apocalyptic number.

It is an amenable number.

29213215789 is a deficient number, since it is larger than the sum of its proper divisors (1).

29213215789 is an equidigital number, since it uses as much as digits as its factorization.

29213215789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The spelling of 29213215789 in words is "twenty-nine billion, two hundred thirteen million, two hundred fifteen thousand, seven hundred eighty-nine".