805827915979 has 8 divisors (see below), whose sum is σ = 808631856032. Its totient is φ = 803025437760.

The previous prime is 805827915901. The next prime is 805827916013. The reversal of 805827915979 is 979519728508.

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 805827915979 - 2⁹ = 805827915467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805827915679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744802 + ... + 1471864.

It is an arithmetic number, because the mean of its divisors is an integer number (101078982004).

Almost surely, 2^805827915979 is an apocalyptic number.

805827915979 is a deficient number, since it is larger than the sum of its proper divisors (2803940053).

805827915979 is a wasteful number, since it uses less digits than its factorization.

805827915979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730917.

The product of its (nonzero) digits is 114307200, while the sum is 70.

The spelling of 805827915979 in words is "eight hundred five billion, eight hundred twenty-seven million, nine hundred fifteen thousand, nine hundred seventy-nine".