2044051543440 has 100 divisors (see below), whose sum is σ = 7099293855324. Its totient is φ = 545080409856.

The previous prime is 2044051543381. The next prime is 2044051543441. The reversal of 2044051543440 is 443451504402.

2044051543440 is a `hidden beast` number, since 20 + 4 + 4 + 0 + 51 + 543 + 4 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 389720524176 + 1654331019264 = 624276^2 + 1286208^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2044051543395 and 2044051543404.

It is not an unprimeable number, because it can be changed into a prime (2044051543441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 157713547 + ... + 157726506.

Almost surely, 2^{2044051543440} is an apocalyptic number.

2044051543440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044051543440 is an abundant number, since it is smaller than the sum of its proper divisors (5055242311884).

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

2044051543440 is a wasteful number, since it uses less digits than its factorization.

2044051543440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315440078 (or 315440063 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 2044051543440 in words is "two trillion, forty-four billion, fifty-one million, five hundred forty-three thousand, four hundred forty".