805776381942 has 24 divisors (see below), whose sum is σ = 1874663419896. Its totient is φ = 230221823328.

The previous prime is 805776381931. The next prime is 805776381947. The reversal of 805776381942 is 249183677508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805776381947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1370367703 + ... + 1370368290.

It is an arithmetic number, because the mean of its divisors is an integer number (78110975829).

It is a 1-persistent number, because it is pandigital, but 2⋅805776381942 = 1611552763884 is not.

Almost surely, 2^805776381942 is an apocalyptic number.

805776381942 is an abundant number, since it is smaller than the sum of its proper divisors (1068887037954).

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

805776381942 is a wasteful number, since it uses less digits than its factorization.

805776381942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740736012 (or 2740736005 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 805776381942 in words is "eight hundred five billion, seven hundred seventy-six million, three hundred eighty-one thousand, nine hundred forty-two".