3668218497 has 24 divisors (see below), whose sum is σ = 5485184640. Its totient is φ = 2359455840.

The previous prime is 3668218487. The next prime is 3668218507. The reversal of 3668218497 is 7948128663.

3668218497 is a `hidden beast` number, since 3 + 66 + 82 + 18 + 497 = 666.

It is an interprime number because it is at equal distance from previous prime (3668218487) and next prime (3668218507).

It is not a de Polignac number, because 3668218497 - 2⁸ = 3668218241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3668218417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 430872 + ... + 439302.

It is an arithmetic number, because the mean of its divisors is an integer number (228549360).

Almost surely, 2^3668218497 is an apocalyptic number.

It is an amenable number.

3668218497 is a deficient number, since it is larger than the sum of its proper divisors (1816966143).

3668218497 is a wasteful number, since it uses less digits than its factorization.

3668218497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10133 (or 10130 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 3668218497 is about 60565.8195436997. The cubic root of 3668218497 is about 1542.2391804997.

The spelling of 3668218497 in words is "three billion, six hundred sixty-eight million, two hundred eighteen thousand, four hundred ninety-seven".