80198741861 has 8 divisors (see below), whose sum is σ = 91658699520. Its totient is φ = 68739532848.

The previous prime is 80198741839. The next prime is 80198741863. The reversal of 80198741861 is 16814789108.

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

It is not a de Polignac number, because 80198741861 - 2³⁴ = 63018872677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80198741863) 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, 65060 + ... + 405746.

It is an arithmetic number, because the mean of its divisors is an integer number (11457337440).

Almost surely, 2^80198741861 is an apocalyptic number.

It is an amenable number.

80198741861 is a deficient number, since it is larger than the sum of its proper divisors (11459957659).

80198741861 is a wasteful number, since it uses less digits than its factorization.

80198741861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374323.

The product of its (nonzero) digits is 774144, while the sum is 53.

The spelling of 80198741861 in words is "eighty billion, one hundred ninety-eight million, seven hundred forty-one thousand, eight hundred sixty-one".