3649463919 has 6 divisors (see below), whose sum is σ = 5271447896. Its totient is φ = 2432975940.

The previous prime is 3649463911. The next prime is 3649463927. The reversal of 3649463919 is 9193649463.

3649463919 is a `hidden beast` number, since 3 + 6 + 494 + 63 + 91 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (3649463911) and next prime (3649463927).

It is not a de Polignac number, because 3649463919 - 2³ = 3649463911 is a prime.

It is a super-2 number, since 2×3649463919² = 26637173792165677122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649463911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 202747987 + ... + 202748004.

Almost surely, 2^3649463919 is an apocalyptic number.

3649463919 is a deficient number, since it is larger than the sum of its proper divisors (1621983977).

3649463919 is a wasteful number, since it uses less digits than its factorization.

3649463919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405495997 (or 405495994 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The square root of 3649463919 is about 60410.7930671333. The cubic root of 3649463919 is about 1539.6063421482.

The spelling of 3649463919 in words is "three billion, six hundred forty-nine million, four hundred sixty-three thousand, nine hundred nineteen".