80934941797 has 4 divisors (see below), whose sum is σ = 80939111596. Its totient is φ = 80930772000.

The previous prime is 80934941779. The next prime is 80934941819. The reversal of 80934941797 is 79714943908.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17026596196 + 63908345601 = 130486^2 + 252801^2 .

It is a cyclic number.

It is not a de Polignac number, because 80934941797 - 2⁷ = 80934941669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80934911797) 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, 2055648 + ... + 2094649.

It is an arithmetic number, because the mean of its divisors is an integer number (20234777899).

Almost surely, 2^80934941797 is an apocalyptic number.

It is an amenable number.

80934941797 is a deficient number, since it is larger than the sum of its proper divisors (4169799).

80934941797 is a wasteful number, since it uses less digits than its factorization.

80934941797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169798.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 80934941797 in words is "eighty billion, nine hundred thirty-four million, nine hundred forty-one thousand, seven hundred ninety-seven".