80778003055280 has 80 divisors (see below), whose sum is σ = 197708747348160. Its totient is φ = 30632858640384.

The previous prime is 80778003055279. The next prime is 80778003055301. The reversal of 80778003055280 is 8255030087708.

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

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, 194044685 + ... + 194460524.

It is an arithmetic number, because the mean of its divisors is an integer number (2471359341852).

Almost surely, 2^{80778003055280} is an apocalyptic number.

80778003055280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80778003055280 is an abundant number, since it is smaller than the sum of its proper divisors (116930744292880).

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

80778003055280 is a wasteful number, since it uses less digits than its factorization.

80778003055280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388505358 (or 388505352 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 80778003055280 in words is "eighty trillion, seven hundred seventy-eight billion, three million, fifty-five thousand, two hundred eighty".