80105083847 has 4 divisors (see below), whose sum is σ = 80142570816. Its totient is φ = 80067596880.

The previous prime is 80105083841. The next prime is 80105083871. The reversal of 80105083847 is 74838050108.

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

It is a cyclic number.

It is not a de Polignac number, because 80105083847 - 2⁶ = 80105083783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80105083798 and 80105083807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80105083841) 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, 18740279 + ... + 18744552.

It is an arithmetic number, because the mean of its divisors is an integer number (20035642704).

Almost surely, 2^80105083847 is an apocalyptic number.

80105083847 is a deficient number, since it is larger than the sum of its proper divisors (37486969).

80105083847 is a wasteful number, since it uses less digits than its factorization.

80105083847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37486968.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 80105083847 in words is "eighty billion, one hundred five million, eighty-three thousand, eight hundred forty-seven".