29661946939 has 2 divisors, whose sum is σ = 29661946940. Its totient is φ = 29661946938.

The previous prime is 29661946931. The next prime is 29661946997. The reversal of 29661946939 is 93964916692.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29661946939 - 2³ = 29661946931 is a prime.

It is not a weakly prime, because it can be changed into another prime (29661946931) 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, 14830973469 + 14830973470.

It is an arithmetic number, because the mean of its divisors is an integer number (14830973470).

Almost surely, 2^29661946939 is an apocalyptic number.

29661946939 is a deficient number, since it is larger than the sum of its proper divisors (1).

29661946939 is an equidigital number, since it uses as much as digits as its factorization.

29661946939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34012224, while the sum is 64.

The spelling of 29661946939 in words is "twenty-nine billion, six hundred sixty-one million, nine hundred forty-six thousand, nine hundred thirty-nine".