29918949475147 has 2 divisors, whose sum is σ = 29918949475148. Its totient is φ = 29918949475146.

The previous prime is 29918949475087. The next prime is 29918949475153. The reversal of 29918949475147 is 74157494981992.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29918949475147 - 2¹¹ = 29918949473099 is a prime.

It is not a weakly prime, because it can be changed into another prime (29918949455147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14959474737573 + 14959474737574.

It is an arithmetic number, because the mean of its divisors is an integer number (14959474737574).

Almost surely, 2^{29918949475147} is an apocalyptic number.

29918949475147 is a deficient number, since it is larger than the sum of its proper divisors (1).

29918949475147 is an equidigital number, since it uses as much as digits as its factorization.

29918949475147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1646023680, while the sum is 79.

The spelling of 29918949475147 in words is "twenty-nine trillion, nine hundred eighteen billion, nine hundred forty-nine million, four hundred seventy-five thousand, one hundred forty-seven".