2729144867 has 2 divisors, whose sum is σ = 2729144868. Its totient is φ = 2729144866.

The previous prime is 2729144863. The next prime is 2729144881. The reversal of 2729144867 is 7684419272.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2729144867 - 2² = 2729144863 is a prime.

It is not a weakly prime, because it can be changed into another prime (2729144863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364572433 + 1364572434.

It is an arithmetic number, because the mean of its divisors is an integer number (1364572434).

Almost surely, 2^2729144867 is an apocalyptic number.

2729144867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2729144867 is an equidigital number, since it uses as much as digits as its factorization.

2729144867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The square root of 2729144867 is about 52241.2180849566. The cubic root of 2729144867 is about 1397.4690440669.

The spelling of 2729144867 in words is "two billion, seven hundred twenty-nine million, one hundred forty-four thousand, eight hundred sixty-seven".