29959523412857 has 2 divisors, whose sum is σ = 29959523412858. Its totient is φ = 29959523412856.

The previous prime is 29959523412803. The next prime is 29959523412977. The reversal of 29959523412857 is 75821432595992.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29531007851536 + 428515561321 = 5434244^2 + 654611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29959523412857 is a prime.

It is not a weakly prime, because it can be changed into another prime (29959523432857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14979761706428 + 14979761706429.

It is an arithmetic number, because the mean of its divisors is an integer number (14979761706429).

Almost surely, 2^{29959523412857} is an apocalyptic number.

It is an amenable number.

29959523412857 is a deficient number, since it is larger than the sum of its proper divisors (1).

29959523412857 is an equidigital number, since it uses as much as digits as its factorization.

29959523412857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888000, while the sum is 71.

The spelling of 29959523412857 in words is "twenty-nine trillion, nine hundred fifty-nine billion, five hundred twenty-three million, four hundred twelve thousand, eight hundred fifty-seven".