80438218242 has 16 divisors (see below), whose sum is σ = 164800252512. Its totient is φ = 26158770080.

The previous prime is 80438218199. The next prime is 80438218271. The reversal of 80438218242 is 24281283408.

It is a junction number, because it is equal to n+sod(n) for n = 80438218194 and 80438218203.

It is an unprimeable number.

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, 163492068 + ... + 163492559.

It is an arithmetic number, because the mean of its divisors is an integer number (10300015782).

Almost surely, 2^80438218242 is an apocalyptic number.

80438218242 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

80438218242 is an abundant number, since it is smaller than the sum of its proper divisors (84362034270).

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

80438218242 is a wasteful number, since it uses less digits than its factorization.

80438218242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326984673.

The product of its (nonzero) digits is 196608, while the sum is 42.

The spelling of 80438218242 in words is "eighty billion, four hundred thirty-eight million, two hundred eighteen thousand, two hundred forty-two".