80843687885 has 8 divisors (see below), whose sum is σ = 97045096416. Its totient is φ = 64653169680.

The previous prime is 80843687851. The next prime is 80843687909. The reversal of 80843687885 is 58878634808.

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

It is not a de Polignac number, because 80843687885 - 2³⁶ = 12124211149 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, 2706239 + ... + 2735948.

It is an arithmetic number, because the mean of its divisors is an integer number (12130637052).

Almost surely, 2^80843687885 is an apocalyptic number.

It is an amenable number.

80843687885 is a deficient number, since it is larger than the sum of its proper divisors (16201408531).

80843687885 is a wasteful number, since it uses less digits than its factorization.

80843687885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5445163.

The product of its (nonzero) digits is 82575360, while the sum is 65.

The spelling of 80843687885 in words is "eighty billion, eight hundred forty-three million, six hundred eighty-seven thousand, eight hundred eighty-five".