544394684405 has 16 divisors (see below), whose sum is σ = 767482297344. Its totient is φ = 365467759680.

The previous prime is 544394684389. The next prime is 544394684417. The reversal of 544394684405 is 504486493445.

It is a happy number.

It is not a de Polignac number, because 544394684405 - 2⁴ = 544394684389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380694869 + ... + 380696298.

It is an arithmetic number, because the mean of its divisors is an integer number (47967643584).

Almost surely, 2^544394684405 is an apocalyptic number.

544394684405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

544394684405 is a deficient number, since it is larger than the sum of its proper divisors (223087612939).

544394684405 is a wasteful number, since it uses less digits than its factorization.

544394684405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761391196.

The product of its (nonzero) digits is 33177600, while the sum is 56.

The spelling of 544394684405 in words is "five hundred forty-four billion, three hundred ninety-four million, six hundred eighty-four thousand, four hundred five".