544400046021 has 16 divisors (see below), whose sum is σ = 792410889536. Its totient is φ = 330426158976.

The previous prime is 544400046013. The next prime is 544400046031. The reversal of 544400046021 is 120640004445.

It is a happy number.

It is not a de Polignac number, because 544400046021 - 2³ = 544400046013 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 544400046021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544400046031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95606575 + ... + 95612268.

It is an arithmetic number, because the mean of its divisors is an integer number (49525680596).

Almost surely, 2^544400046021 is an apocalyptic number.

It is an amenable number.

544400046021 is a deficient number, since it is larger than the sum of its proper divisors (248010843515).

544400046021 is a wasteful number, since it uses less digits than its factorization.

544400046021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191218932.

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 544400046021 in words is "five hundred forty-four billion, four hundred million, forty-six thousand, twenty-one".