29143304857 has 2 divisors, whose sum is σ = 29143304858. Its totient is φ = 29143304856.

The previous prime is 29143304851. The next prime is 29143304909. The reversal of 29143304857 is 75840334192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17567911936 + 11575392921 = 132544^2 + 107589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29143304857 is a prime.

It is not a weakly prime, because it can be changed into another prime (29143304851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14571652428 + 14571652429.

It is an arithmetic number, because the mean of its divisors is an integer number (14571652429).

Almost surely, 2^29143304857 is an apocalyptic number.

It is an amenable number.

29143304857 is a deficient number, since it is larger than the sum of its proper divisors (1).

29143304857 is an equidigital number, since it uses as much as digits as its factorization.

29143304857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 29143304857 in words is "twenty-nine billion, one hundred forty-three million, three hundred four thousand, eight hundred fifty-seven".