544522451440 has 80 divisors (see below), whose sum is σ = 1395345379680. Its totient is φ = 195966812160.

The previous prime is 544522451381. The next prime is 544522451443. The reversal of 544522451440 is 44154225445.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 544522451393 and 544522451402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544522451443) 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 15 ways as a sum of consecutive naturals, for example, 3104205 + ... + 3274924.

It is an arithmetic number, because the mean of its divisors is an integer number (17441817246).

Almost surely, 2^544522451440 is an apocalyptic number.

It is an amenable number.

544522451440 is an abundant number, since it is smaller than the sum of its proper divisors (850822928240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

544522451440 is a wasteful number, since it uses less digits than its factorization.

544522451440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379250 (or 6379244 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 40.

Adding to 544522451440 its reverse (44154225445), we get a palindrome (588676676885).

The spelling of 544522451440 in words is "five hundred forty-four billion, five hundred twenty-two million, four hundred fifty-one thousand, four hundred forty".