2108968357 has 2 divisors, whose sum is σ = 2108968358. Its totient is φ = 2108968356.

The previous prime is 2108968319. The next prime is 2108968397. The reversal of 2108968357 is 7538698012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2100022276 + 8946081 = 45826^2 + 2991^2 .

It is a cyclic number.

It is not a de Polignac number, because 2108968357 - 2⁷ = 2108968229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2108968357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2108968307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054484178 + 1054484179.

It is an arithmetic number, because the mean of its divisors is an integer number (1054484179).

Almost surely, 2^2108968357 is an apocalyptic number.

It is an amenable number.

2108968357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108968357 is an equidigital number, since it uses as much as digits as its factorization.

2108968357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 2108968357 is about 45923.5054955521. The cubic root of 2108968357 is about 1282.3995428891.

The spelling of 2108968357 in words is "two billion, one hundred eight million, nine hundred sixty-eight thousand, three hundred fifty-seven".