80419091138 has 8 divisors (see below), whose sum is σ = 120633670332. Its totient is φ = 40207867696.

The previous prime is 80419091131. The next prime is 80419091173. The reversal of 80419091138 is 83119091408.

It can be written as a sum of positive squares in 2 ways, for example, as 75176317489 + 5242773649 = 274183^2 + 72407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80419091131) 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 3 ways as a sum of consecutive naturals, for example, 778145 + ... + 875412.

Almost surely, 2^80419091138 is an apocalyptic number.

80419091138 is a deficient number, since it is larger than the sum of its proper divisors (40214579194).

80419091138 is a wasteful number, since it uses less digits than its factorization.

80419091138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677876.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 80419091138 in words is "eighty billion, four hundred nineteen million, ninety-one thousand, one hundred thirty-eight".