3646446463 has 16 divisors (see below), whose sum is σ = 4002055200. Its totient is φ = 3294910080.

The previous prime is 3646446451. The next prime is 3646446487.

It is a happy number.

3646446463 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3646446463 - 2²¹ = 3644349311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646446413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2551033 + ... + 2552461.

It is an arithmetic number, because the mean of its divisors is an integer number (250128450).

Almost surely, 2^3646446463 is an apocalyptic number.

3646446463 is a deficient number, since it is larger than the sum of its proper divisors (355608737).

3646446463 is a wasteful number, since it uses less digits than its factorization.

3646446463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682.

The product of its digits is 2985984, while the sum is 46.

The square root of 3646446463 is about 60385.8134250090. The cubic root of 3646446463 is about 1539.1818984971.

The spelling of 3646446463 in words is "three billion, six hundred forty-six million, four hundred forty-six thousand, four hundred sixty-three".