5268908921 has 2 divisors, whose sum is σ = 5268908922. Its totient is φ = 5268908920.

The previous prime is 5268908903. The next prime is 5268908927. The reversal of 5268908921 is 1298098625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4877066896 + 391842025 = 69836^2 + 19795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5268908921 is a prime.

It is a super-2 number, since 2×5268908921² = 55522802435586768482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5268908921.

It is not a weakly prime, because it can be changed into another prime (5268908927) 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, 2634454460 + 2634454461.

It is an arithmetic number, because the mean of its divisors is an integer number (2634454461).

Almost surely, 2^5268908921 is an apocalyptic number.

It is an amenable number.

5268908921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5268908921 is an equidigital number, since it uses as much as digits as its factorization.

5268908921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 5268908921 is about 72587.2504025328. The cubic root of 5268908921 is about 1740.0974227612.

The spelling of 5268908921 in words is "five billion, two hundred sixty-eight million, nine hundred eight thousand, nine hundred twenty-one".