840791742273 has 16 divisors (see below), whose sum is σ = 1423562738560. Its totient is φ = 480452424048.

The previous prime is 840791742269. The next prime is 840791742283. The reversal of 840791742273 is 372247197048.

840791742273 is a `hidden beast` number, since 8 + 407 + 9 + 1 + 7 + 4 + 227 + 3 = 666.

840791742273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 840791742273 - 2² = 840791742269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (840791742283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2224316590 + ... + 2224316967.

It is an arithmetic number, because the mean of its divisors is an integer number (88972671160).

Almost surely, 2^840791742273 is an apocalyptic number.

It is an amenable number.

840791742273 is a deficient number, since it is larger than the sum of its proper divisors (582770996287).

840791742273 is a wasteful number, since it uses less digits than its factorization.

840791742273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448633573 (or 4448633567 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 840791742273 in words is "eight hundred forty billion, seven hundred ninety-one million, seven hundred forty-two thousand, two hundred seventy-three".