544400540461 has 8 divisors (see below), whose sum is σ = 550293767064. Its totient is φ = 538517179200.

The previous prime is 544400540459. The next prime is 544400540503. The reversal of 544400540461 is 164045004445.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 484812801225 + 59587739236 = 696285^2 + 244106^2 .

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 544400540461 - 2¹ = 544400540459 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 544400540461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544400540561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2355346 + ... + 2576131.

It is an arithmetic number, because the mean of its divisors is an integer number (68786720883).

Almost surely, 2^544400540461 is an apocalyptic number.

It is an amenable number.

544400540461 is a deficient number, since it is larger than the sum of its proper divisors (5893226603).

544400540461 is a wasteful number, since it uses less digits than its factorization.

544400540461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932671.

The product of its (nonzero) digits is 153600, while the sum is 37.

The spelling of 544400540461 in words is "five hundred forty-four billion, four hundred million, five hundred forty thousand, four hundred sixty-one".