805958052864 has 88 divisors (see below), whose sum is σ = 2156532808368. Its totient is φ = 267607080960.

The previous prime is 805958052863. The next prime is 805958052989. The reversal of 805958052864 is 468250859508.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 805958052798 and 805958052807.

It is not an unprimeable number, because it can be changed into a prime (805958052863) 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, 279084 + ... + 1299924.

Almost surely, 2^805958052864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805958052864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078266404184).

805958052864 is an abundant number, since it is smaller than the sum of its proper divisors (1350574755504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805958052864 is a wasteful number, since it uses less digits than its factorization.

805958052864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021121 (or 1021103 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 60.

The spelling of 805958052864 in words is "eight hundred five billion, nine hundred fifty-eight million, fifty-two thousand, eight hundred sixty-four".