1440053793973 has 16 divisors (see below), whose sum is σ = 1474319437360. Its totient is φ = 1406201389056.

The previous prime is 1440053793949. The next prime is 1440053794009. The reversal of 1440053793973 is 3793973500441.

It can be written as a sum of positive squares in 8 ways, for example, as 503790487524 + 936263306449 = 709782^2 + 967607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440053793973 is a prime.

It is a super-2 number, since 2×1440053793973² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440053793173) 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, 10250461 + ... + 10389997.

It is an arithmetic number, because the mean of its divisors is an integer number (92144964835).

Almost surely, 2^{1440053793973} is an apocalyptic number.

It is an amenable number.

1440053793973 is a deficient number, since it is larger than the sum of its proper divisors (34265643387).

1440053793973 is a wasteful number, since it uses less digits than its factorization.

1440053793973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141016.

The product of its (nonzero) digits is 8573040, while the sum is 55.

The spelling of 1440053793973 in words is "one trillion, four hundred forty billion, fifty-three million, seven hundred ninety-three thousand, nine hundred seventy-three".