9809490655603 has 16 divisors (see below), whose sum is σ = 10195906741632. Its totient is φ = 9431695728000.

The previous prime is 9809490655567. The next prime is 9809490655633. The reversal of 9809490655603 is 3065560949089.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9809490655603 is a prime.

It is a super-2 number, since 2×9809490655603² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9809490655633) 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, 4721968 + ... + 6474253.

It is an arithmetic number, because the mean of its divisors is an integer number (637244171352).

Almost surely, 2^{9809490655603} is an apocalyptic number.

9809490655603 is a deficient number, since it is larger than the sum of its proper divisors (386416086029).

9809490655603 is a wasteful number, since it uses less digits than its factorization.

9809490655603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11196606.

The product of its (nonzero) digits is 62985600, while the sum is 64.

The spelling of 9809490655603 in words is "nine trillion, eight hundred nine billion, four hundred ninety million, six hundred fifty-five thousand, six hundred three".