80364646917 has 12 divisors (see below), whose sum is σ = 116222305420. Its totient is φ = 53511798528.

The previous prime is 80364646913. The next prime is 80364646927. The reversal of 80364646917 is 71964646308.

80364646917 is a `hidden beast` number, since 80 + 36 + 464 + 69 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62125064001 + 18239582916 = 249249^2 + 135054^2 .

It is not a de Polignac number, because 80364646917 - 2² = 80364646913 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 (80364646913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5378188 + ... + 5393109.

Almost surely, 2^80364646917 is an apocalyptic number.

It is an amenable number.

80364646917 is a deficient number, since it is larger than the sum of its proper divisors (35857658503).

80364646917 is a wasteful number, since it uses less digits than its factorization.

80364646917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10772132 (or 10772129 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 80364646917 in words is "eighty billion, three hundred sixty-four million, six hundred forty-six thousand, nine hundred seventeen".