29612920847 has 2 divisors, whose sum is σ = 29612920848. Its totient is φ = 29612920846.

The previous prime is 29612920819. The next prime is 29612920879. The reversal of 29612920847 is 74802921692.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29612920847 - 2¹⁴ = 29612904463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29612920795 and 29612920804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29612920247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14806460423 + 14806460424.

It is an arithmetic number, because the mean of its divisors is an integer number (14806460424).

Almost surely, 2^29612920847 is an apocalyptic number.

29612920847 is a deficient number, since it is larger than the sum of its proper divisors (1).

29612920847 is an equidigital number, since it uses as much as digits as its factorization.

29612920847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 29612920847 in words is "twenty-nine billion, six hundred twelve million, nine hundred twenty thousand, eight hundred forty-seven".