2603243490849 has 45 divisors (see below), whose sum is σ = 4018982437569. Its totient is φ = 1679221507320.

The previous prime is 2603243490797. The next prime is 2603243490877. The reversal of 2603243490849 is 9480943423062.

The square root of 2603243490849 is 1613457.

It is a perfect power (a square), and thus also a powerful number.

2603243490849 is a `hidden beast` number, since 2 + 6 + 0 + 32 + 43 + 490 + 84 + 9 = 666.

2603243490849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2603243490849 - 2²³ = 2603235102241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2603243490795 and 2603243490804.

It is not an unprimeable number, because it can be changed into a prime (2603243490889) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 450151612 + ... + 450157394.

Almost surely, 2^{2603243490849} is an apocalyptic number.

2603243490849 is the 1613457-th square number.

2603243490849 is the 806729-th centered octagonal number.

It is an amenable number.

2603243490849 is a deficient number, since it is larger than the sum of its proper divisors (1415738946720).

2603243490849 is an frugal number, since it uses more digits than its factorization.

2603243490849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640 (or 5817 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 54.

The spelling of 2603243490849 in words is "two trillion, six hundred three billion, two hundred forty-three million, four hundred ninety thousand, eight hundred forty-nine".