2144727133540 has 48 divisors (see below), whose sum is σ = 4769020135152. Its totient is φ = 807400226816.

The previous prime is 2144727133529. The next prime is 2144727133543. The reversal of 2144727133540 is 453317274412.

It can be written as a sum of positive squares in 8 ways, for example, as 174302910016 + 1970424223524 = 417496^2 + 1403718^2 .

It is not an unprimeable number, because it can be changed into a prime (2144727133543) 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, 12569034 + ... + 12738526.

It is an arithmetic number, because the mean of its divisors is an integer number (99354586149).

Almost surely, 2^{2144727133540} is an apocalyptic number.

2144727133540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144727133540 is an abundant number, since it is smaller than the sum of its proper divisors (2624293001612).

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

2144727133540 is a wasteful number, since it uses less digits than its factorization.

2144727133540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206736 (or 206734 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 2144727133540 in words is "two trillion, one hundred forty-four billion, seven hundred twenty-seven million, one hundred thirty-three thousand, five hundred forty".