29806238351 has 4 divisors (see below), whose sum is σ = 29911561032. Its totient is φ = 29700915672.

The previous prime is 29806238311. The next prime is 29806238359. The reversal of 29806238351 is 15383260892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29806238351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29806238296 and 29806238305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29806238359) 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 in 3 ways as a sum of consecutive naturals, for example, 52660916 + ... + 52661481.

It is an arithmetic number, because the mean of its divisors is an integer number (7477890258).

Almost surely, 2^29806238351 is an apocalyptic number.

29806238351 is a deficient number, since it is larger than the sum of its proper divisors (105322681).

29806238351 is a wasteful number, since it uses less digits than its factorization.

29806238351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105322680.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 29806238351 in words is "twenty-nine billion, eight hundred six million, two hundred thirty-eight thousand, three hundred fifty-one".