80817809361286 has 24 divisors (see below), whose sum is σ = 128782352651040. Its totient is φ = 38030378750592.

The previous prime is 80817809361281. The next prime is 80817809361287. The reversal of 80817809361286 is 68216390871808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80817809361281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11614200 + ... + 17219908.

It is an arithmetic number, because the mean of its divisors is an integer number (5365931360460).

Almost surely, 2^{80817809361286} is an apocalyptic number.

80817809361286 is a deficient number, since it is larger than the sum of its proper divisors (47964543289754).

80817809361286 is a wasteful number, since it uses less digits than its factorization.

80817809361286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630688 (or 5630671 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 67.

The spelling of 80817809361286 in words is "eighty trillion, eight hundred seventeen billion, eight hundred nine million, three hundred sixty-one thousand, two hundred eighty-six".