4552354778549 has 4 divisors (see below), whose sum is σ = 4552359127680. Its totient is φ = 4552350429420.

The previous prime is 4552354778533. The next prime is 4552354778639. The reversal of 4552354778549 is 9458774532554.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 4552354778549 - 2⁴ = 4552354778533 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 (4552354778149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457322 + ... + 3051860.

It is an arithmetic number, because the mean of its divisors is an integer number (1138089781920).

Almost surely, 2^{4552354778549} is an apocalyptic number.

It is an amenable number.

4552354778549 is a deficient number, since it is larger than the sum of its proper divisors (4349131).

4552354778549 is a wasteful number, since it uses less digits than its factorization.

4552354778549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349130.

The product of its digits is 846720000, while the sum is 68.

The spelling of 4552354778549 in words is "four trillion, five hundred fifty-two billion, three hundred fifty-four million, seven hundred seventy-eight thousand, five hundred forty-nine".