2728474729991 has 2 divisors, whose sum is σ = 2728474729992. Its totient is φ = 2728474729990.

The previous prime is 2728474729969. The next prime is 2728474730017. The reversal of 2728474729991 is 1999274748272.

2728474729991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2728474729991 - 2²⁶ = 2728407621127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2728474729961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364237364995 + 1364237364996.

It is an arithmetic number, because the mean of its divisors is an integer number (1364237364996).

Almost surely, 2^{2728474729991} is an apocalyptic number.

2728474729991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728474729991 is an equidigital number, since it uses as much as digits as its factorization.

2728474729991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256048128, while the sum is 71.

The spelling of 2728474729991 in words is "two trillion, seven hundred twenty-eight billion, four hundred seventy-four million, seven hundred twenty-nine thousand, nine hundred ninety-one".