208954738379 has 2 divisors, whose sum is σ = 208954738380. Its totient is φ = 208954738378.

The previous prime is 208954738373. The next prime is 208954738381. The reversal of 208954738379 is 973837459802.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208954738379 is a prime.

Together with 208954738381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (208954738373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104477369189 + 104477369190.

It is an arithmetic number, because the mean of its divisors is an integer number (104477369190).

Almost surely, 2^208954738379 is an apocalyptic number.

208954738379 is a deficient number, since it is larger than the sum of its proper divisors (1).

208954738379 is an equidigital number, since it uses as much as digits as its factorization.

208954738379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 208954738379 in words is "two hundred eight billion, nine hundred fifty-four million, seven hundred thirty-eight thousand, three hundred seventy-nine".