544108649 has 4 divisors (see below), whose sum is σ = 621838464. Its totient is φ = 466378836.

The previous prime is 544108637. The next prime is 544108661. The reversal of 544108649 is 946801445.

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.

It is an interprime number because it is at equal distance from previous prime (544108637) and next prime (544108661).

It is not a de Polignac number, because 544108649 - 2²⁴ = 527331433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544108549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38864897 + ... + 38864910.

It is an arithmetic number, because the mean of its divisors is an integer number (155459616).

Almost surely, 2^544108649 is an apocalyptic number.

It is an amenable number.

544108649 is a deficient number, since it is larger than the sum of its proper divisors (77729815).

544108649 is an equidigital number, since it uses as much as digits as its factorization.

544108649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77729814.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 544108649 is about 23326.1366068194. The cubic root of 544108649 is about 816.3853633032.

The spelling of 544108649 in words is "five hundred forty-four million, one hundred eight thousand, six hundred forty-nine".