544423011155 has 12 divisors (see below), whose sum is σ = 657662944176. Its totient is φ = 432653958000.

The previous prime is 544423011133. The next prime is 544423011157. The reversal of 544423011155 is 551110324445.

It is a happy number.

It is not a de Polignac number, because 544423011155 - 2²⁶ = 544355902291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544423011157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2273711 + ... + 2501720.

It is an arithmetic number, because the mean of its divisors is an integer number (54805245348).

Almost surely, 2^544423011155 is an apocalyptic number.

544423011155 is a deficient number, since it is larger than the sum of its proper divisors (113239933021).

544423011155 is an equidigital number, since it uses as much as digits as its factorization.

544423011155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775738 (or 4775587 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 544423011155 in words is "five hundred forty-four billion, four hundred twenty-three million, eleven thousand, one hundred fifty-five".