80735266405 has 8 divisors (see below), whose sum is σ = 99135397152. Its totient is φ = 63086161488.

The previous prime is 80735266357. The next prime is 80735266433. The reversal of 80735266405 is 50466253708.

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

It is a cyclic number.

It is not a de Polignac number, because 80735266405 - 2⁷ = 80735266277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187756219 + ... + 187756648.

It is an arithmetic number, because the mean of its divisors is an integer number (12391924644).

Almost surely, 2^80735266405 is an apocalyptic number.

It is an amenable number.

80735266405 is a deficient number, since it is larger than the sum of its proper divisors (18400130747).

80735266405 is a wasteful number, since it uses less digits than its factorization.

80735266405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375512915.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 80735266405 in words is "eighty billion, seven hundred thirty-five million, two hundred sixty-six thousand, four hundred five".