29918683679 has 2 divisors, whose sum is σ = 29918683680. Its totient is φ = 29918683678.

The previous prime is 29918683667. The next prime is 29918683789. The reversal of 29918683679 is 97638681992.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29918683679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29918683609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14959341839 + 14959341840.

It is an arithmetic number, because the mean of its divisors is an integer number (14959341840).

Almost surely, 2^29918683679 is an apocalyptic number.

29918683679 is a deficient number, since it is larger than the sum of its proper divisors (1).

29918683679 is an equidigital number, since it uses as much as digits as its factorization.

29918683679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70543872, while the sum is 68.

The spelling of 29918683679 in words is "twenty-nine billion, nine hundred eighteen million, six hundred eighty-three thousand, six hundred seventy-nine".