136800376217 has 2 divisors, whose sum is σ = 136800376218. Its totient is φ = 136800376216.

The previous prime is 136800376187. The next prime is 136800376243. The reversal of 136800376217 is 712673008631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84385021081 + 52415355136 = 290491^2 + 228944^2 .

It is a cyclic number.

It is not a de Polignac number, because 136800376217 - 2⁸ = 136800375961 is a prime.

It is a super-3 number, since 3×136800376217³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (136800376267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68400188108 + 68400188109.

It is an arithmetic number, because the mean of its divisors is an integer number (68400188109).

Almost surely, 2^136800376217 is an apocalyptic number.

It is an amenable number.

136800376217 is a deficient number, since it is larger than the sum of its proper divisors (1).

136800376217 is an equidigital number, since it uses as much as digits as its factorization.

136800376217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 136800376217 in words is "one hundred thirty-six billion, eight hundred million, three hundred seventy-six thousand, two hundred seventeen".