29189816657 has 2 divisors, whose sum is σ = 29189816658. Its totient is φ = 29189816656.

The previous prime is 29189816653. The next prime is 29189816681. The reversal of 29189816657 is 75661898192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26035758736 + 3154057921 = 161356^2 + 56161^2 .

It is a cyclic number.

It is not a de Polignac number, because 29189816657 - 2² = 29189816653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29189816657.

It is not a weakly prime, because it can be changed into another prime (29189816653) 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, 14594908328 + 14594908329.

It is an arithmetic number, because the mean of its divisors is an integer number (14594908329).

Almost surely, 2^29189816657 is an apocalyptic number.

It is an amenable number.

29189816657 is a deficient number, since it is larger than the sum of its proper divisors (1).

29189816657 is an equidigital number, since it uses as much as digits as its factorization.

29189816657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 62.

The spelling of 29189816657 in words is "twenty-nine billion, one hundred eighty-nine million, eight hundred sixteen thousand, six hundred fifty-seven".