3654354321 has 12 divisors (see below), whose sum is σ = 5421174772. Its totient is φ = 2370391776.

The previous prime is 3654354317. The next prime is 3654354337. The reversal of 3654354321 is 1234534563.

3654354321 is a `hidden beast` number, since 36 + 543 + 54 + 32 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1712718225 + 1941636096 = 41385^2 + 44064^2 .

It is not a de Polignac number, because 3654354321 - 2² = 3654354317 is a prime.

It is a super-2 number, since 2×3654354321² = 26708611006822742082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3654354421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5486686 + ... + 5487351.

Almost surely, 2^3654354321 is an apocalyptic number.

It is an amenable number.

3654354321 is a deficient number, since it is larger than the sum of its proper divisors (1766820451).

3654354321 is a wasteful number, since it uses less digits than its factorization.

3654354321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10974080 (or 10974077 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 3654354321 is about 60451.2557437809. The cubic root of 3654354321 is about 1540.2937429497.

Adding to 3654354321 its reverse (1234534563), we get a palindrome (4888888884).

The spelling of 3654354321 in words is "three billion, six hundred fifty-four million, three hundred fifty-four thousand, three hundred twenty-one".