29479728329 has 2 divisors, whose sum is σ = 29479728330. Its totient is φ = 29479728328.

The previous prime is 29479728277. The next prime is 29479728371. The reversal of 29479728329 is 92382797492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23862525625 + 5617202704 = 154475^2 + 74948^2 .

It is a cyclic number.

It is not a de Polignac number, because 29479728329 - 2³² = 25184761033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (29479728389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14739864164 + 14739864165.

It is an arithmetic number, because the mean of its divisors is an integer number (14739864165).

Almost surely, 2^29479728329 is an apocalyptic number.

It is an amenable number.

29479728329 is a deficient number, since it is larger than the sum of its proper divisors (1).

29479728329 is an equidigital number, since it uses as much as digits as its factorization.

29479728329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 62.

The spelling of 29479728329 in words is "twenty-nine billion, four hundred seventy-nine million, seven hundred twenty-eight thousand, three hundred twenty-nine".