80892182357978 has 8 divisors (see below), whose sum is σ = 121576659144660. Its totient is φ = 40366629309760.

The previous prime is 80892182357977. The next prime is 80892182357983. The reversal of 80892182357978 is 87975328129808.

80892182357978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 58908434083489 + 21983748274489 = 7675183^2 + 4688683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 80892182357899 and 80892182357908.

It is not an unprimeable number, because it can be changed into a prime (80892182357977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39730933343 + ... + 39730935378.

Almost surely, 2^{80892182357978} is an apocalyptic number.

80892182357978 is a deficient number, since it is larger than the sum of its proper divisors (40684476786682).

80892182357978 is a wasteful number, since it uses less digits than its factorization.

80892182357978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79461869232.

The product of its (nonzero) digits is 975421440, while the sum is 77.

The spelling of 80892182357978 in words is "eighty trillion, eight hundred ninety-two billion, one hundred eighty-two million, three hundred fifty-seven thousand, nine hundred seventy-eight".