210939279379 has 2 divisors, whose sum is σ = 210939279380. Its totient is φ = 210939279378.

The previous prime is 210939279377. The next prime is 210939279401. The reversal of 210939279379 is 973972939012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210939279379 - 2¹ = 210939279377 is a prime.

Together with 210939279377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (210939279377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105469639689 + 105469639690.

It is an arithmetic number, because the mean of its divisors is an integer number (105469639690).

Almost surely, 2^210939279379 is an apocalyptic number.

210939279379 is a deficient number, since it is larger than the sum of its proper divisors (1).

210939279379 is an equidigital number, since it uses as much as digits as its factorization.

210939279379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11573604, while the sum is 61.

The spelling of 210939279379 in words is "two hundred ten billion, nine hundred thirty-nine million, two hundred seventy-nine thousand, three hundred seventy-nine".