2729730685399 has 2 divisors, whose sum is σ = 2729730685400. Its totient is φ = 2729730685398.

The previous prime is 2729730685393. The next prime is 2729730685439. The reversal of 2729730685399 is 9935860379272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2729730685399 - 2⁹ = 2729730684887 is a prime.

It is a super-2 number, since 2×2729730685399² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2729730685393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364865342699 + 1364865342700.

It is an arithmetic number, because the mean of its divisors is an integer number (1364865342700).

Almost surely, 2^{2729730685399} is an apocalyptic number.

2729730685399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2729730685399 is an equidigital number, since it uses as much as digits as its factorization.

2729730685399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 308629440, while the sum is 70.

The spelling of 2729730685399 in words is "two trillion, seven hundred twenty-nine billion, seven hundred thirty million, six hundred eighty-five thousand, three hundred ninety-nine".