2649735617 has 8 divisors (see below), whose sum is σ = 2814571656. Its totient is φ = 2485896192.

The previous prime is 2649735601. The next prime is 2649735619. The reversal of 2649735617 is 7165379462.

It can be written as a sum of positive squares in 4 ways, for example, as 43020481 + 2606715136 = 6559^2 + 51056^2 .

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 2649735617 - 2⁴ = 2649735601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2649735619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243668 + ... + 254309.

It is an arithmetic number, because the mean of its divisors is an integer number (351821457).

Almost surely, 2^2649735617 is an apocalyptic number.

It is an amenable number.

2649735617 is a deficient number, since it is larger than the sum of its proper divisors (164836039).

2649735617 is a wasteful number, since it uses less digits than its factorization.

2649735617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498307.

The product of its digits is 1905120, while the sum is 50.

The square root of 2649735617 is about 51475.5827261819. The cubic root of 2649735617 is about 1383.7814819294.

The spelling of 2649735617 in words is "two billion, six hundred forty-nine million, seven hundred thirty-five thousand, six hundred seventeen".