80820381462406 has 4 divisors (see below), whose sum is σ = 121230572193612. Its totient is φ = 40410190731202.

The previous prime is 80820381462383. The next prime is 80820381462413. The reversal of 80820381462406 is 60426418302808.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20205095365600 + ... + 20205095365603.

It is an arithmetic number, because the mean of its divisors is an integer number (30307643048403).

Almost surely, 2^{80820381462406} is an apocalyptic number.

80820381462406 is a deficient number, since it is larger than the sum of its proper divisors (40410190731206).

80820381462406 is a wasteful number, since it uses less digits than its factorization.

80820381462406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40410190731205.

The product of its (nonzero) digits is 3538944, while the sum is 52.

The spelling of 80820381462406 in words is "eighty trillion, eight hundred twenty billion, three hundred eighty-one million, four hundred sixty-two thousand, four hundred six".