3653775649 has 8 divisors (see below), whose sum is σ = 3683957760. Its totient is φ = 3623615856.

The previous prime is 3653775647. The next prime is 3653775667. The reversal of 3653775649 is 9465773563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3653775649 - 2¹ = 3653775647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3653775649.

It is not an unprimeable number, because it can be changed into a prime (3653775647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533682 + ... + 540484.

It is an arithmetic number, because the mean of its divisors is an integer number (460494720).

Almost surely, 2^3653775649 is an apocalyptic number.

It is an amenable number.

3653775649 is a deficient number, since it is larger than the sum of its proper divisors (30182111).

3653775649 is a wasteful number, since it uses less digits than its factorization.

3653775649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11159.

The product of its digits is 14288400, while the sum is 55.

The square root of 3653775649 is about 60446.4692848143. The cubic root of 3653775649 is about 1540.2124361182.

The spelling of 3653775649 in words is "three billion, six hundred fifty-three million, seven hundred seventy-five thousand, six hundred forty-nine".