356194008109 has 2 divisors, whose sum is σ = 356194008110. Its totient is φ = 356194008108.

The previous prime is 356194008103. The next prime is 356194008113. The reversal of 356194008109 is 901800491653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346681907209 + 9512100900 = 588797^2 + 97530^2 .

It is an emirp because it is prime and its reverse (901800491653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 356194008109 - 2⁵ = 356194008077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (356194008103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178097004054 + 178097004055.

It is an arithmetic number, because the mean of its divisors is an integer number (178097004055).

Almost surely, 2^356194008109 is an apocalyptic number.

It is an amenable number.

356194008109 is a deficient number, since it is larger than the sum of its proper divisors (1).

356194008109 is an equidigital number, since it uses as much as digits as its factorization.

356194008109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 356194008109 in words is "three hundred fifty-six billion, one hundred ninety-four million, eight thousand, one hundred nine".