36686685349 has 2 divisors, whose sum is σ = 36686685350. Its totient is φ = 36686685348.

The previous prime is 36686685341. The next prime is 36686685391. The reversal of 36686685349 is 94358668663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35520940900 + 1165744449 = 188470^2 + 34143^2 .

It is a cyclic number.

It is not a de Polignac number, because 36686685349 - 2³ = 36686685341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36686685341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18343342674 + 18343342675.

It is an arithmetic number, because the mean of its divisors is an integer number (18343342675).

Almost surely, 2^36686685349 is an apocalyptic number.

It is an amenable number.

36686685349 is a deficient number, since it is larger than the sum of its proper divisors (1).

36686685349 is an equidigital number, since it uses as much as digits as its factorization.

36686685349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134369280, while the sum is 64.

The spelling of 36686685349 in words is "thirty-six billion, six hundred eighty-six million, six hundred eighty-five thousand, three hundred forty-nine".