2658305749 has 12 divisors (see below), whose sum is σ = 2927412460. Its totient is φ = 2412115200.

The previous prime is 2658305743. The next prime is 2658305761. The reversal of 2658305749 is 9475038562.

It can be written as a sum of positive squares in 2 ways, for example, as 794225124 + 1864080625 = 28182^2 + 43175^2 .

It is not a de Polignac number, because 2658305749 - 2²⁹ = 2121434837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2658305743) 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 11 ways as a sum of consecutive naturals, for example, 45157 + ... + 85765.

Almost surely, 2^2658305749 is an apocalyptic number.

It is an amenable number.

2658305749 is a deficient number, since it is larger than the sum of its proper divisors (269106711).

2658305749 is a wasteful number, since it uses less digits than its factorization.

2658305749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41172 (or 41161 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

The square root of 2658305749 is about 51558.7601577074. The cubic root of 2658305749 is about 1385.2717472572.

The spelling of 2658305749 in words is "two billion, six hundred fifty-eight million, three hundred five thousand, seven hundred forty-nine".