4636772549 has 8 divisors (see below), whose sum is σ = 4775594520. Its totient is φ = 4498661376.

The previous prime is 4636772537. The next prime is 4636772557. The reversal of 4636772549 is 9452776364.

It can be written as a sum of positive squares in 4 ways, for example, as 491730625 + 4145041924 = 22175^2 + 64382^2 .

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 4636772549 - 2¹⁶ = 4636707013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4636772549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4636772249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164444 + ... + 190565.

It is an arithmetic number, because the mean of its divisors is an integer number (596949315).

Almost surely, 2^4636772549 is an apocalyptic number.

It is an amenable number.

4636772549 is a deficient number, since it is larger than the sum of its proper divisors (138821971).

4636772549 is a wasteful number, since it uses less digits than its factorization.

4636772549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355399.

The product of its digits is 7620480, while the sum is 53.

The square root of 4636772549 is about 68093.8510366391. The cubic root of 4636772549 is about 1667.5233765446.

The spelling of 4636772549 in words is "four billion, six hundred thirty-six million, seven hundred seventy-two thousand, five hundred forty-nine".