2660824813 has 2 divisors, whose sum is σ = 2660824814. Its totient is φ = 2660824812.

The previous prime is 2660824811. The next prime is 2660824841. The reversal of 2660824813 is 3184280662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1341537129 + 1319287684 = 36627^2 + 36322^2 .

It is a cyclic number.

It is not a de Polignac number, because 2660824813 - 2¹ = 2660824811 is a prime.

Together with 2660824811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660824811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330412406 + 1330412407.

It is an arithmetic number, because the mean of its divisors is an integer number (1330412407).

Almost surely, 2^2660824813 is an apocalyptic number.

It is an amenable number.

2660824813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660824813 is an equidigital number, since it uses as much as digits as its factorization.

2660824813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 2660824813 is about 51583.1834322001. The cubic root of 2660824813 is about 1385.7091795706.

The spelling of 2660824813 in words is "two billion, six hundred sixty million, eight hundred twenty-four thousand, eight hundred thirteen".