36654776261 has 2 divisors, whose sum is σ = 36654776262. Its totient is φ = 36654776260.

The previous prime is 36654776243. The next prime is 36654776351. The reversal of 36654776261 is 16267745663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29449992100 + 7204784161 = 171610^2 + 84881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36654776261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36654776161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18327388130 + 18327388131.

It is an arithmetic number, because the mean of its divisors is an integer number (18327388131).

Almost surely, 2^36654776261 is an apocalyptic number.

It is an amenable number.

36654776261 is a deficient number, since it is larger than the sum of its proper divisors (1).

36654776261 is an equidigital number, since it uses as much as digits as its factorization.

36654776261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 53.

The spelling of 36654776261 in words is "thirty-six billion, six hundred fifty-four million, seven hundred seventy-six thousand, two hundred sixty-one".