544102442689 has 27 divisors (see below), whose sum is σ = 616155879843. Its totient is φ = 480216786192.

The previous prime is 544102442683. The next prime is 544102442693. The reversal of 544102442689 is 986244201445.

The square root of 544102442689 is 737633.

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

It can be written as a sum of positive squares in only one way, i.e., 80488527025 + 463613915664 = 283705^2 + 680892^2 .

It is not a de Polignac number, because 544102442689 - 2¹³ = 544102434497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544102442683) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 220551034 + ... + 220553500.

Almost surely, 2^544102442689 is an apocalyptic number.

544102442689 is the 737633-rd square number.

544102442689 is the 368817-th centered octagonal number.

It is an amenable number.

544102442689 is a deficient number, since it is larger than the sum of its proper divisors (72053437154).

544102442689 is an frugal number, since it uses more digits than its factorization.

544102442689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006 (or 2503 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

Multiplying 544102442689 by its sum of digits (49), we get a square (26661019691761 = 5163431²).

The spelling of 544102442689 in words is "five hundred forty-four billion, one hundred two million, four hundred forty-two thousand, six hundred eighty-nine".