29327766989 has 2 divisors, whose sum is σ = 29327766990. Its totient is φ = 29327766988.

The previous prime is 29327766967. The next prime is 29327767037. The reversal of 29327766989 is 98966772392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21256182025 + 8071584964 = 145795^2 + 89842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29327766989 is a prime.

It is a super-2 number, since 2×29327766989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29327766959) 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, 14663883494 + 14663883495.

It is an arithmetic number, because the mean of its divisors is an integer number (14663883495).

Almost surely, 2^29327766989 is an apocalyptic number.

It is an amenable number.

29327766989 is a deficient number, since it is larger than the sum of its proper divisors (1).

29327766989 is an equidigital number, since it uses as much as digits as its factorization.

29327766989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123451776, while the sum is 68.

The spelling of 29327766989 in words is "twenty-nine billion, three hundred twenty-seven million, seven hundred sixty-six thousand, nine hundred eighty-nine".