80194309087 has 8 divisors (see below), whose sum is σ = 83071911600. Its totient is φ = 77324192064.

The previous prime is 80194309007. The next prime is 80194309099. The reversal of 80194309087 is 78090349108.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80194309087 is a prime.

It is a super-2 number, since 2×80194309087² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80194309087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80194309007) 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, 1849558 + ... + 1892419.

It is an arithmetic number, because the mean of its divisors is an integer number (10383988950).

Almost surely, 2^80194309087 is an apocalyptic number.

80194309087 is a deficient number, since it is larger than the sum of its proper divisors (2877602513).

80194309087 is a wasteful number, since it uses less digits than its factorization.

80194309087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742745.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 80194309087 in words is "eighty billion, one hundred ninety-four million, three hundred nine thousand, eighty-seven".