10781144444072 has 8 divisors (see below), whose sum is σ = 20214645832650. Its totient is φ = 5390572222032.

The previous prime is 10781144444039. The next prime is 10781144444087. The reversal of 10781144444072 is 27044444118701.

It can be written as a sum of positive squares in only one way, i.e., 7382556331396 + 3398588112676 = 2717086^2 + 1843526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673821527747 + ... + 673821527762.

Almost surely, 2^{10781144444072} is an apocalyptic number.

It is an amenable number.

10781144444072 is a deficient number, since it is larger than the sum of its proper divisors (9433501388578).

10781144444072 is a wasteful number, since it uses less digits than its factorization.

10781144444072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347643055515 (or 1347643055511 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 47.

The spelling of 10781144444072 in words is "ten trillion, seven hundred eighty-one billion, one hundred forty-four million, four hundred forty-four thousand, seventy-two".