80418042820 has 24 divisors (see below), whose sum is σ = 169996292928. Its totient is φ = 31954188000.

The previous prime is 80418042797. The next prime is 80418042827. The reversal of 80418042820 is 2824081408.

It is a super-2 number, since 2×80418042820² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80418042820.

It is not an unprimeable number, because it can be changed into a prime (80418042827) 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 7 ways as a sum of consecutive naturals, for example, 13311226 + ... + 13317265.

It is an arithmetic number, because the mean of its divisors is an integer number (7083178872).

Almost surely, 2^80418042820 is an apocalyptic number.

It is an amenable number.

80418042820 is an abundant number, since it is smaller than the sum of its proper divisors (89578250108).

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

80418042820 is a wasteful number, since it uses less digits than its factorization.

80418042820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26628651 (or 26628649 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 37.

The spelling of 80418042820 in words is "eighty billion, four hundred eighteen million, forty-two thousand, eight hundred twenty".