1440828725653 has 4 divisors (see below), whose sum is σ = 1440924687180. Its totient is φ = 1440732764128.

The previous prime is 1440828725639. The next prime is 1440828725663. The reversal of 1440828725653 is 3565278280441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 395643516004 + 1045185209649 = 629002^2 + 1022343^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440828725653 - 2¹⁷ = 1440828594581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440828725594 and 1440828725603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440828725663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47958238 + ... + 47988271.

It is an arithmetic number, because the mean of its divisors is an integer number (360231171795).

Almost surely, 2^{1440828725653} is an apocalyptic number.

It is an amenable number.

1440828725653 is a deficient number, since it is larger than the sum of its proper divisors (95961527).

1440828725653 is an equidigital number, since it uses as much as digits as its factorization.

1440828725653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95961526.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 1440828725653 in words is "one trillion, four hundred forty billion, eight hundred twenty-eight million, seven hundred twenty-five thousand, six hundred fifty-three".