80803027782780 has 96 divisors (see below), whose sum is σ = 240441187553280. Its totient is φ = 20205141672960.

The previous prime is 80803027782779. The next prime is 80803027782791. The reversal of 80803027782780 is 8728772030808.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145883460 + ... + 146436299.

It is an arithmetic number, because the mean of its divisors is an integer number (2504595703680).

Almost surely, 2^{80803027782780} is an apocalyptic number.

It is an amenable number.

80803027782780 is an abundant number, since it is smaller than the sum of its proper divisors (159638159770500).

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

80803027782780 is a wasteful number, since it uses less digits than its factorization.

80803027782780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292320059 (or 292320057 counting only the distinct ones).

The product of its (nonzero) digits is 16859136, while the sum is 60.

The spelling of 80803027782780 in words is "eighty trillion, eight hundred three billion, twenty-seven million, seven hundred eighty-two thousand, seven hundred eighty".