2868953221 has 2 divisors, whose sum is σ = 2868953222. Its totient is φ = 2868953220.

The previous prime is 2868953173. The next prime is 2868953233. The reversal of 2868953221 is 1223598682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1837836900 + 1031116321 = 42870^2 + 32111^2 .

It is a cyclic number.

It is not a de Polignac number, because 2868953221 - 2¹⁷ = 2868822149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2868953251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434476610 + 1434476611.

It is an arithmetic number, because the mean of its divisors is an integer number (1434476611).

Almost surely, 2^2868953221 is an apocalyptic number.

It is an amenable number.

2868953221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2868953221 is an equidigital number, since it uses as much as digits as its factorization.

2868953221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The square root of 2868953221 is about 53562.6102892680. The cubic root of 2868953221 is about 1420.9359070212.

The spelling of 2868953221 in words is "two billion, eight hundred sixty-eight million, nine hundred fifty-three thousand, two hundred twenty-one".