840543422337 has 12 divisors (see below), whose sum is σ = 1214196462180. Its totient is φ = 560326195968.

The previous prime is 840543422333. The next prime is 840543422339. The reversal of 840543422337 is 733224345048.

840543422337 is a `hidden beast` number, since 8 + 40 + 543 + 42 + 23 + 3 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 222030382401 + 618513039936 = 471201^2 + 786456^2 .

It is not a de Polignac number, because 840543422337 - 2² = 840543422333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 840543422292 and 840543422301.

It is not an unprimeable number, because it can be changed into a prime (840543422333) 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, 2859228 + ... + 3139469.

It is an arithmetic number, because the mean of its divisors is an integer number (101183038515).

Almost surely, 2^840543422337 is an apocalyptic number.

It is an amenable number.

840543422337 is a deficient number, since it is larger than the sum of its proper divisors (373653039843).

840543422337 is a wasteful number, since it uses less digits than its factorization.

840543422337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014272 (or 6014269 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 45.

The spelling of 840543422337 in words is "eight hundred forty billion, five hundred forty-three million, four hundred twenty-two thousand, three hundred thirty-seven".