208914794191423 has 2 divisors, whose sum is σ = 208914794191424. Its totient is φ = 208914794191422.

The previous prime is 208914794191417. The next prime is 208914794191469. The reversal of 208914794191423 is 324191497419802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208914794191423 - 2²¹ = 208914792094271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208914794191723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104457397095711 + 104457397095712.

It is an arithmetic number, because the mean of its divisors is an integer number (104457397095712).

Almost surely, 2^{208914794191423} is an apocalyptic number.

208914794191423 is a deficient number, since it is larger than the sum of its proper divisors (1).

208914794191423 is an equidigital number, since it uses as much as digits as its factorization.

208914794191423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 208914794191423 in words is "two hundred eight trillion, nine hundred fourteen billion, seven hundred ninety-four million, one hundred ninety-one thousand, four hundred twenty-three".