29479954123 has 2 divisors, whose sum is σ = 29479954124. Its totient is φ = 29479954122.

The previous prime is 29479954117. The next prime is 29479954171. The reversal of 29479954123 is 32145997492.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29479954123 is a prime.

It is not a weakly prime, because it can be changed into another prime (29479954423) 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 as a sum of consecutive naturals, namely, 14739977061 + 14739977062.

It is an arithmetic number, because the mean of its divisors is an integer number (14739977062).

Almost surely, 2^29479954123 is an apocalyptic number.

29479954123 is a deficient number, since it is larger than the sum of its proper divisors (1).

29479954123 is an equidigital number, since it uses as much as digits as its factorization.

29479954123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 55.

The spelling of 29479954123 in words is "twenty-nine billion, four hundred seventy-nine million, nine hundred fifty-four thousand, one hundred twenty-three".