29915463449 has 2 divisors, whose sum is σ = 29915463450. Its totient is φ = 29915463448.

The previous prime is 29915463323. The next prime is 29915463551. The reversal of 29915463449 is 94436451992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29352255625 + 563207824 = 171325^2 + 23732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29915463449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29915463394 and 29915463403.

It is not a weakly prime, because it can be changed into another prime (29915465449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14957731724 + 14957731725.

It is an arithmetic number, because the mean of its divisors is an integer number (14957731725).

Almost surely, 2^29915463449 is an apocalyptic number.

It is an amenable number.

29915463449 is a deficient number, since it is larger than the sum of its proper divisors (1).

29915463449 is an equidigital number, since it uses as much as digits as its factorization.

29915463449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 56.

The spelling of 29915463449 in words is "twenty-nine billion, nine hundred fifteen million, four hundred sixty-three thousand, four hundred forty-nine".