2662454549 has 4 divisors (see below), whose sum is σ = 2662562880. Its totient is φ = 2662346220.

The previous prime is 2662454537. The next prime is 2662454563. The reversal of 2662454549 is 9454542662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9454542662 = 2 ⋅4727271331.

It is a cyclic number.

It is not a de Polignac number, because 2662454549 - 2⁸ = 2662454293 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 (2662456549) 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 3 ways as a sum of consecutive naturals, for example, 2372 + ... + 73010.

It is an arithmetic number, because the mean of its divisors is an integer number (665640720).

Almost surely, 2^2662454549 is an apocalyptic number.

It is an amenable number.

2662454549 is a deficient number, since it is larger than the sum of its proper divisors (108331).

2662454549 is an equidigital number, since it uses as much as digits as its factorization.

2662454549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108330.

The product of its digits is 2073600, while the sum is 47.

The square root of 2662454549 is about 51598.9781778670. The cubic root of 2662454549 is about 1385.9920341212.

The spelling of 2662454549 in words is "two billion, six hundred sixty-two million, four hundred fifty-four thousand, five hundred forty-nine".