36602368681 has 2 divisors, whose sum is σ = 36602368682. Its totient is φ = 36602368680.

The previous prime is 36602368643. The next prime is 36602368697. The reversal of 36602368681 is 18686320663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25811314281 + 10791054400 = 160659^2 + 103880^2 .

It is an emirp because it is prime and its reverse (18686320663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36602368681 - 2²¹ = 36600271529 is a prime.

It is a super-2 number, since 2×36602368681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36602368601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18301184340 + 18301184341.

It is an arithmetic number, because the mean of its divisors is an integer number (18301184341).

Almost surely, 2^36602368681 is an apocalyptic number.

It is an amenable number.

36602368681 is a deficient number, since it is larger than the sum of its proper divisors (1).

36602368681 is an equidigital number, since it uses as much as digits as its factorization.

36602368681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 36602368681 in words is "thirty-six billion, six hundred two million, three hundred sixty-eight thousand, six hundred eighty-one".