1780022056444 has 6 divisors (see below), whose sum is σ = 3115038598784. Its totient is φ = 890011028220.

The previous prime is 1780022056433. The next prime is 1780022056471. The reversal of 1780022056444 is 4446502200871.

It is a self number, because there is not a number n which added to its sum of digits gives 1780022056444.

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, 222502757052 + ... + 222502757059.

Almost surely, 2^{1780022056444} is an apocalyptic number.

It is an amenable number.

1780022056444 is a deficient number, since it is larger than the sum of its proper divisors (1335016542340).

1780022056444 is a wasteful number, since it uses less digits than its factorization.

1780022056444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445005514115 (or 445005514113 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 1780022056444 in words is "one trillion, seven hundred eighty billion, twenty-two million, fifty-six thousand, four hundred forty-four".