3668417381 has 6 divisors (see below), whose sum is σ = 3871654182. Its totient is φ = 3475342440.

The previous prime is 3668417371. The next prime is 3668417393. The reversal of 3668417381 is 1837148663.

It can be written as a sum of positive squares in only one way, i.e., 3382469281 + 285948100 = 58159^2 + 16910^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3668417381 is a prime.

It is a super-2 number, since 2×3668417381² = 26914572162445798322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668417371) 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 in 5 ways as a sum of consecutive naturals, for example, 5080550 + ... + 5081271.

It is an arithmetic number, because the mean of its divisors is an integer number (645275697).

Almost surely, 2^3668417381 is an apocalyptic number.

It is an amenable number.

3668417381 is a deficient number, since it is larger than the sum of its proper divisors (203236801).

3668417381 is a wasteful number, since it uses less digits than its factorization.

3668417381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10161859 (or 10161840 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 3668417381 is about 60567.4614046189. The cubic root of 3668417381 is about 1542.2670524449.

The spelling of 3668417381 in words is "three billion, six hundred sixty-eight million, four hundred seventeen thousand, three hundred eighty-one".