2368808821 has 2 divisors, whose sum is σ = 2368808822. Its totient is φ = 2368808820.

The previous prime is 2368808809. The next prime is 2368808833. The reversal of 2368808821 is 1288088632.

It is a happy number.

2368808821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (2368808809) and next prime (2368808833).

It can be written as a sum of positive squares in only one way, i.e., 2331537796 + 37271025 = 48286^2 + 6105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2368808821 is a prime.

It is a super-2 number, since 2×2368808821² = 11222510460894820082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2368808891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1184404410 + 1184404411.

It is an arithmetic number, because the mean of its divisors is an integer number (1184404411).

Almost surely, 2^2368808821 is an apocalyptic number.

It is an amenable number.

2368808821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2368808821 is an equidigital number, since it uses as much as digits as its factorization.

2368808821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 2368808821 is about 48670.4101174420. The cubic root of 2368808821 is about 1333.0404785081.

The spelling of 2368808821 in words is "two billion, three hundred sixty-eight million, eight hundred eight thousand, eight hundred twenty-one".