800026018782 has 32 divisors (see below), whose sum is σ = 1704963688992. Its totient is φ = 249389896704.

The previous prime is 800026018777. The next prime is 800026018783. The reversal of 800026018782 is 287810620008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800026018783) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24962943 + ... + 24994970.

It is an arithmetic number, because the mean of its divisors is an integer number (53280115281).

Almost surely, 2^800026018782 is an apocalyptic number.

800026018782 is an abundant number, since it is smaller than the sum of its proper divisors (904937670210).

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

800026018782 is a wasteful number, since it uses less digits than its factorization.

800026018782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49958092.

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 800026018782 in words is "eight hundred billion, twenty-six million, eighteen thousand, seven hundred eighty-two".