2662751521 has 2 divisors, whose sum is σ = 2662751522. Its totient is φ = 2662751520.

The previous prime is 2662751503. The next prime is 2662751527. The reversal of 2662751521 is 1251572662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2552270400 + 110481121 = 50520^2 + 10511^2 .

It is a cyclic number.

It is not a de Polignac number, because 2662751521 - 2¹⁷ = 2662620449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2662751527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331375760 + 1331375761.

It is an arithmetic number, because the mean of its divisors is an integer number (1331375761).

Almost surely, 2^2662751521 is an apocalyptic number.

It is an amenable number.

2662751521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662751521 is an equidigital number, since it uses as much as digits as its factorization.

2662751521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 2662751521 is about 51601.8557902717. The cubic root of 2662751521 is about 1386.0435637050.

The spelling of 2662751521 in words is "two billion, six hundred sixty-two million, seven hundred fifty-one thousand, five hundred twenty-one".