2011728377 has 2 divisors, whose sum is σ = 2011728378. Its totient is φ = 2011728376.

The previous prime is 2011728287. The next prime is 2011728421. The reversal of 2011728377 is 7738271102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1721503081 + 290225296 = 41491^2 + 17036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011728377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011728377.

It is not a weakly prime, because it can be changed into another prime (2011728077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005864188 + 1005864189.

It is an arithmetic number, because the mean of its divisors is an integer number (1005864189).

Almost surely, 2^2011728377 is an apocalyptic number.

It is an amenable number.

2011728377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011728377 is an equidigital number, since it uses as much as digits as its factorization.

2011728377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 2011728377 is about 44852.2951140742. The cubic root of 2011728377 is about 1262.3790562443.

Adding to 2011728377 its reverse (7738271102), we get a palindrome (9749999479).

The spelling of 2011728377 in words is "two billion, eleven million, seven hundred twenty-eight thousand, three hundred seventy-seven".