2513749849 has 8 divisors (see below), whose sum is σ = 2716753032. Its totient is φ = 2312123520.

The previous prime is 2513749831. The next prime is 2513749853. The reversal of 2513749849 is 9489473152.

It can be written as a sum of positive squares in 4 ways, for example, as 168091225 + 2345658624 = 12965^2 + 48432^2 .

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 2513749849 - 2¹¹ = 2513747801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2513749796 and 2513749805.

It is not an unprimeable number, because it can be changed into a prime (2513749949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340414 + ... + 347719.

It is an arithmetic number, because the mean of its divisors is an integer number (339594129).

Almost surely, 2^2513749849 is an apocalyptic number.

It is an amenable number.

2513749849 is a deficient number, since it is larger than the sum of its proper divisors (203003183).

2513749849 is a wasteful number, since it uses less digits than its factorization.

2513749849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688427.

The product of its digits is 2177280, while the sum is 52.

The square root of 2513749849 is about 50137.3099497769. The cubic root of 2513749849 is about 1359.6924493787.

The spelling of 2513749849 in words is "two billion, five hundred thirteen million, seven hundred forty-nine thousand, eight hundred forty-nine".