2721652469 has 2 divisors, whose sum is σ = 2721652470. Its totient is φ = 2721652468.

The previous prime is 2721652459. The next prime is 2721652517. The reversal of 2721652469 is 9642561272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1703212900 + 1018439569 = 41270^2 + 31913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2721652469 is a prime.

It is a super-2 number, since 2×2721652469² = 14814784324027591922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2721652429) 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, 1360826234 + 1360826235.

It is an arithmetic number, because the mean of its divisors is an integer number (1360826235).

Almost surely, 2^2721652469 is an apocalyptic number.

It is an amenable number.

2721652469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721652469 is an equidigital number, since it uses as much as digits as its factorization.

2721652469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 2721652469 is about 52169.4591595504. The cubic root of 2721652469 is about 1396.1890350069.

The spelling of 2721652469 in words is "two billion, seven hundred twenty-one million, six hundred fifty-two thousand, four hundred sixty-nine".