29718254947 has 2 divisors, whose sum is σ = 29718254948. Its totient is φ = 29718254946.

The previous prime is 29718254933. The next prime is 29718254981. The reversal of 29718254947 is 74945281792.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29718254947 - 2³¹ = 27570771299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29718254891 and 29718254900.

It is not a weakly prime, because it can be changed into another prime (29718254647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14859127473 + 14859127474.

It is an arithmetic number, because the mean of its divisors is an integer number (14859127474).

Almost surely, 2^29718254947 is an apocalyptic number.

29718254947 is a deficient number, since it is larger than the sum of its proper divisors (1).

29718254947 is an equidigital number, since it uses as much as digits as its factorization.

29718254947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 58.

The spelling of 29718254947 in words is "twenty-nine billion, seven hundred eighteen million, two hundred fifty-four thousand, nine hundred forty-seven".