3608502604981 has 2 divisors, whose sum is σ = 3608502604982. Its totient is φ = 3608502604980.

The previous prime is 3608502604963. The next prime is 3608502605047. The reversal of 3608502604981 is 1894062058063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2427457480900 + 1181045124081 = 1558030^2 + 1086759^2 .

It is a cyclic number.

It is not a de Polignac number, because 3608502604981 - 2¹⁷ = 3608502473909 is a prime.

It is a super-2 number, since 2×3608502604981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3608502604481) 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, 1804251302490 + 1804251302491.

It is an arithmetic number, because the mean of its divisors is an integer number (1804251302491).

Almost surely, 2^{3608502604981} is an apocalyptic number.

It is an amenable number.

3608502604981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3608502604981 is an equidigital number, since it uses as much as digits as its factorization.

3608502604981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 3608502604981 in words is "three trillion, six hundred eight billion, five hundred two million, six hundred four thousand, nine hundred eighty-one".