1084778751144 has 128 divisors (see below), whose sum is σ = 3087660487680. Its totient is φ = 314373312000.

The previous prime is 1084778751071. The next prime is 1084778751149. The reversal of 1084778751144 is 4411578774801.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1084778751149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45230484 + ... + 45254460.

It is an arithmetic number, because the mean of its divisors is an integer number (24122347560).

Almost surely, 2^{1084778751144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1084778751144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1543830243840).

1084778751144 is an abundant number, since it is smaller than the sum of its proper divisors (2002881736536).

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

1084778751144 is a wasteful number, since it uses less digits than its factorization.

1084778751144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31471 (or 31467 counting only the distinct ones).

The product of its (nonzero) digits is 7024640, while the sum is 57.

The spelling of 1084778751144 in words is "one trillion, eighty-four billion, seven hundred seventy-eight million, seven hundred fifty-one thousand, one hundred forty-four".