80438218194 has 16 divisors (see below), whose sum is σ = 160880670432. Its totient is φ = 26812033728.

The previous prime is 80438218193. The next prime is 80438218199. The reversal of 80438218194 is 49181283408.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80438218193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105117 + ... + 414639.

It is an arithmetic number, because the mean of its divisors is an integer number (10055041902).

Almost surely, 2^80438218194 is an apocalyptic number.

80438218194 is an abundant number, since it is smaller than the sum of its proper divisors (80442452238).

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

80438218194 is a wasteful number, since it uses less digits than its factorization.

80438218194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352841.

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 80438218194 in words is "eighty billion, four hundred thirty-eight million, two hundred eighteen thousand, one hundred ninety-four".