208031314607929 has 2 divisors, whose sum is σ = 208031314607930. Its totient is φ = 208031314607928.

The previous prime is 208031314607923. The next prime is 208031314608001. The reversal of 208031314607929 is 929706413130802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191715814437904 + 16315500170025 = 13846148^2 + 4039245^2 .

It is a cyclic number.

It is not a de Polignac number, because 208031314607929 - 2¹³ = 208031314599737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208031314607929.

It is not a weakly prime, because it can be changed into another prime (208031314607923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104015657303964 + 104015657303965.

It is an arithmetic number, because the mean of its divisors is an integer number (104015657303965).

Almost surely, 2^{208031314607929} is an apocalyptic number.

It is an amenable number.

208031314607929 is a deficient number, since it is larger than the sum of its proper divisors (1).

208031314607929 is an equidigital number, since it uses as much as digits as its factorization.

208031314607929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 208031314607929 in words is "two hundred eight trillion, thirty-one billion, three hundred fourteen million, six hundred seven thousand, nine hundred twenty-nine".