29893323947 has 2 divisors, whose sum is σ = 29893323948. Its totient is φ = 29893323946.

The previous prime is 29893323853. The next prime is 29893323953. The reversal of 29893323947 is 74932339892.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29893323947 is a prime.

It is a super-2 number, since 2×29893323947² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29893323247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14946661973 + 14946661974.

It is an arithmetic number, because the mean of its divisors is an integer number (14946661974).

Almost surely, 2^29893323947 is an apocalyptic number.

29893323947 is a deficient number, since it is larger than the sum of its proper divisors (1).

29893323947 is an equidigital number, since it uses as much as digits as its factorization.

29893323947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 59.

The spelling of 29893323947 in words is "twenty-nine billion, eight hundred ninety-three million, three hundred twenty-three thousand, nine hundred forty-seven".