29649213677 has 2 divisors, whose sum is σ = 29649213678. Its totient is φ = 29649213676.

The previous prime is 29649213661. The next prime is 29649213679. The reversal of 29649213677 is 77631294692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21147267241 + 8501946436 = 145421^2 + 92206^2 .

It is a cyclic number.

It is not a de Polignac number, because 29649213677 - 2⁴ = 29649213661 is a prime.

Together with 29649213679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29649213679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14824606838 + 14824606839.

It is an arithmetic number, because the mean of its divisors is an integer number (14824606839).

Almost surely, 2^29649213677 is an apocalyptic number.

It is an amenable number.

29649213677 is a deficient number, since it is larger than the sum of its proper divisors (1).

29649213677 is an equidigital number, since it uses as much as digits as its factorization.

29649213677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 56.

The spelling of 29649213677 in words is "twenty-nine billion, six hundred forty-nine million, two hundred thirteen thousand, six hundred seventy-seven".