80819340342 has 64 divisors (see below), whose sum is σ = 178984935360. Its totient is φ = 24174319104.

The previous prime is 80819340319. The next prime is 80819340353. The reversal of 80819340342 is 24304391808.

It is a junction number, because it is equal to n+sod(n) for n = 80819340294 and 80819340303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360928 + ... + 540284.

It is an arithmetic number, because the mean of its divisors is an integer number (2796639615).

Almost surely, 2^80819340342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80819340342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89492467680).

80819340342 is an abundant number, since it is smaller than the sum of its proper divisors (98165595018).

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

80819340342 is a wasteful number, since it uses less digits than its factorization.

80819340342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179537.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 80819340342 in words is "eighty billion, eight hundred nineteen million, three hundred forty thousand, three hundred forty-two".