544905779909089 has 9 divisors (see below), whose sum is σ = 563051152991601. Its totient is φ = 527327473809060.

The previous prime is 544905779909047. The next prime is 544905779909137. The reversal of 544905779909089 is 980909977509445.

It is a happy number.

The square root of 544905779909089 is 23343217.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 544905779909089 - 2²⁵ = 544905746354657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 544905779908997 and 544905779909015.

It is not an unprimeable number, because it can be changed into a prime (544905779909389) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 723263224 + ... + 724016230.

It is an arithmetic number, because the mean of its divisors is an integer number (62561239221289).

Almost surely, 2^{544905779909089} is an apocalyptic number.

544905779909089 is the 23343217-th square number.

544905779909089 is the 11671609-th centered octagonal number.

It is an amenable number.

544905779909089 is a deficient number, since it is larger than the sum of its proper divisors (18145373082512).

544905779909089 is an frugal number, since it uses more digits than its factorization.

544905779909089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506076 (or 753038 counting only the distinct ones).

The product of its (nonzero) digits is 9258883200, while the sum is 85.

The spelling of 544905779909089 in words is "five hundred forty-four trillion, nine hundred five billion, seven hundred seventy-nine million, nine hundred nine thousand, eighty-nine".