4486663649 has 4 divisors (see below), whose sum is σ = 4831791636. Its totient is φ = 4141535664.

The previous prime is 4486663627. The next prime is 4486663693. The reversal of 4486663649 is 9463666844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 954501025 + 3532162624 = 30895^2 + 59432^2 .

It is a cyclic number.

It is not a de Polignac number, because 4486663649 - 2⁸ = 4486663393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4486663594 and 4486663603.

It is not an unprimeable number, because it can be changed into a prime (4486663609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172563974 + ... + 172563999.

It is an arithmetic number, because the mean of its divisors is an integer number (1207947909).

Almost surely, 2^4486663649 is an apocalyptic number.

It is an amenable number.

4486663649 is a deficient number, since it is larger than the sum of its proper divisors (345127987).

4486663649 is a wasteful number, since it uses less digits than its factorization.

4486663649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345127986.

The product of its digits is 17915904, while the sum is 56.

The square root of 4486663649 is about 66982.5622755654. The cubic root of 4486663649 is about 1649.3310602107.

The spelling of 4486663649 in words is "four billion, four hundred eighty-six million, six hundred sixty-three thousand, six hundred forty-nine".