80998356841 has 4 divisors (see below), whose sum is σ = 81001506384. Its totient is φ = 80995207300.

The previous prime is 80998356797. The next prime is 80998356869. The reversal of 80998356841 is 14865389908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80998356841 - 2³¹ = 78850873193 is a prime.

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 80998356841.

It is not an unprimeable number, because it can be changed into a prime (80998356641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1535875 + ... + 1587736.

It is an arithmetic number, because the mean of its divisors is an integer number (20250376596).

Almost surely, 2^80998356841 is an apocalyptic number.

It is an amenable number.

80998356841 is a deficient number, since it is larger than the sum of its proper divisors (3149543).

80998356841 is a wasteful number, since it uses less digits than its factorization.

80998356841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149542.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 80998356841 in words is "eighty billion, nine hundred ninety-eight million, three hundred fifty-six thousand, eight hundred forty-one".