840266475361 has 4 divisors (see below), whose sum is σ = 841081477824. Its totient is φ = 839451472900.

The previous prime is 840266475337. The next prime is 840266475379. The reversal of 840266475361 is 163574662048.

840266475361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 840266475361 - 2¹³ = 840266467169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 840266475299 and 840266475308.

It is not an unprimeable number, because it can be changed into a prime (840266455361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407499685 + ... + 407501746.

It is an arithmetic number, because the mean of its divisors is an integer number (210270369456).

Almost surely, 2^840266475361 is an apocalyptic number.

It is an amenable number.

840266475361 is a deficient number, since it is larger than the sum of its proper divisors (815002463).

840266475361 is a wasteful number, since it uses less digits than its factorization.

840266475361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815002462.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 840266475361 in words is "eight hundred forty billion, two hundred sixty-six million, four hundred seventy-five thousand, three hundred sixty-one".