80913000605 has 8 divisors (see below), whose sum is σ = 97139489112. Its totient is φ = 64701141568.

The previous prime is 80913000593. The next prime is 80913000631. The reversal of 80913000605 is 50600031908.

It can be written as a sum of positive squares in 4 ways, for example, as 54196771204 + 26716229401 = 232802^2 + 163451^2 .

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 80913000605 - 2²⁸ = 80644565149 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3645194 + ... + 3667323.

It is an arithmetic number, because the mean of its divisors is an integer number (12142436139).

Almost surely, 2^80913000605 is an apocalyptic number.

It is an amenable number.

80913000605 is a deficient number, since it is larger than the sum of its proper divisors (16226488507).

80913000605 is a wasteful number, since it uses less digits than its factorization.

80913000605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314735.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 80913000605 in words is "eighty billion, nine hundred thirteen million, six hundred five", and thus it is an aban number.