2721135877 has 2 divisors, whose sum is σ = 2721135878. Its totient is φ = 2721135876.

The previous prime is 2721135853. The next prime is 2721135883. The reversal of 2721135877 is 7785311272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2499900001 + 221235876 = 49999^2 + 14874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2721135877 is a prime.

It is a super-2 number, since 2×2721135877² = 14809160922193118258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2721135377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360567938 + 1360567939.

It is an arithmetic number, because the mean of its divisors is an integer number (1360567939).

Almost surely, 2^2721135877 is an apocalyptic number.

It is an amenable number.

2721135877 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721135877 is an equidigital number, since it uses as much as digits as its factorization.

2721135877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164640, while the sum is 43.

The square root of 2721135877 is about 52164.5078285993. The cubic root of 2721135877 is about 1396.1006933674.

The spelling of 2721135877 in words is "two billion, seven hundred twenty-one million, one hundred thirty-five thousand, eight hundred seventy-seven".