805778270343 has 12 divisors (see below), whose sum is σ = 1214506378800. Its totient is φ = 513829621536.

The previous prime is 805778270317. The next prime is 805778270399. The reversal of 805778270343 is 343072877508.

It is a happy number.

805778270343 is a `hidden beast` number, since 8 + 0 + 577 + 8 + 27 + 0 + 3 + 43 = 666.

It is not a de Polignac number, because 805778270343 - 2⁶ = 805778270279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 805778270343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805778170343) 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, 1946324118 + ... + 1946324531.

It is an arithmetic number, because the mean of its divisors is an integer number (101208864900).

Almost surely, 2^805778270343 is an apocalyptic number.

805778270343 is a deficient number, since it is larger than the sum of its proper divisors (408728108457).

805778270343 is a wasteful number, since it uses less digits than its factorization.

805778270343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892648678 (or 3892648675 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 805778270343 in words is "eight hundred five billion, seven hundred seventy-eight million, two hundred seventy thousand, three hundred forty-three".