80255919780 has 72 divisors (see below), whose sum is σ = 243492637752. Its totient is φ = 21397211136.

The previous prime is 80255919739. The next prime is 80255919817. The reversal of 80255919780 is 8791955208.

80255919780 is a `hidden beast` number, since 8 + 0 + 2 + 559 + 1 + 9 + 7 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 26681262336 + 53574657444 = 163344^2 + 231462^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 892564 + ... + 978356.

It is an arithmetic number, because the mean of its divisors is an integer number (3381842191).

Almost surely, 2^80255919780 is an apocalyptic number.

It is an amenable number.

80255919780 is an abundant number, since it is smaller than the sum of its proper divisors (163236717972).

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

80255919780 is a wasteful number, since it uses less digits than its factorization.

80255919780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91005 (or 91000 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 54.

The spelling of 80255919780 in words is "eighty billion, two hundred fifty-five million, nine hundred nineteen thousand, seven hundred eighty".