544412244645 has 48 divisors (see below), whose sum is σ = 999235207152. Its totient is φ = 273252096000.

The previous prime is 544412244569. The next prime is 544412244709. The reversal of 544412244645 is 546442214445.

544412244645 is a `hidden beast` number, since 5 + 4 + 44 + 122 + 446 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 22433449284 + 521978795361 = 149778^2 + 722481^2 .

It is not a de Polignac number, because 544412244645 - 2¹³ = 544412236453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 544412244645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14900019 + ... + 14936511.

It is an arithmetic number, because the mean of its divisors is an integer number (20817400149).

Almost surely, 2^544412244645 is an apocalyptic number.

It is an amenable number.

544412244645 is a deficient number, since it is larger than the sum of its proper divisors (454822962507).

544412244645 is a wasteful number, since it uses less digits than its factorization.

544412244645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56022 (or 56019 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 45.

The spelling of 544412244645 in words is "five hundred forty-four billion, four hundred twelve million, two hundred forty-four thousand, six hundred forty-five".