1782678342044 has 6 divisors (see below), whose sum is σ = 3119687098584. Its totient is φ = 891339171020.

The previous prime is 1782678342031. The next prime is 1782678342091. The reversal of 1782678342044 is 4402438762871.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222834792752 + ... + 222834792759.

It is an arithmetic number, because the mean of its divisors is an integer number (519947849764).

Almost surely, 2^{1782678342044} is an apocalyptic number.

It is an amenable number.

1782678342044 is a deficient number, since it is larger than the sum of its proper divisors (1337008756540).

1782678342044 is a wasteful number, since it uses less digits than its factorization.

1782678342044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445669585515 (or 445669585513 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 56.

The spelling of 1782678342044 in words is "one trillion, seven hundred eighty-two billion, six hundred seventy-eight million, three hundred forty-two thousand, forty-four".