1780050656080 has 80 divisors (see below), whose sum is σ = 4239645520320. Its totient is φ = 694837794816.

The previous prime is 1780050656063. The next prime is 1780050656119. The reversal of 1780050656080 is 806560500871.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1780050656080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978345 + ... + 2125384.

It is an arithmetic number, because the mean of its divisors is an integer number (52995569004).

Almost surely, 2^{1780050656080} is an apocalyptic number.

1780050656080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1780050656080 is an abundant number, since it is smaller than the sum of its proper divisors (2459594864240).

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

1780050656080 is a wasteful number, since it uses less digits than its factorization.

1780050656080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103916 (or 3103910 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 1780050656080 in words is "one trillion, seven hundred eighty billion, fifty million, six hundred fifty-six thousand, eighty".