3668985268 has 54 divisors (see below), whose sum is σ = 7159219494. Its totient is φ = 1643308992.

The previous prime is 3668985263. The next prime is 3668985293. The reversal of 3668985268 is 8625898663.

It can be written as a sum of positive squares in 3 ways, for example, as 190108944 + 3478876324 = 13788^2 + 58982^2 .

It is a super-2 number, since 2×3668985268² = 26922905793602063648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668985263) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9579405 + ... + 9579787.

Almost surely, 2^3668985268 is an apocalyptic number.

It is an amenable number.

3668985268 is a deficient number, since it is larger than the sum of its proper divisors (3490234226).

3668985268 is a wasteful number, since it uses less digits than its factorization.

3668985268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 435 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 61.

The square root of 3668985268 is about 60572.1492767097. The cubic root of 3668985268 is about 1542.3466315593.

The spelling of 3668985268 in words is "three billion, six hundred sixty-eight million, nine hundred eighty-five thousand, two hundred sixty-eight".