842543361 has 12 divisors (see below), whose sum is σ = 1327644240. Its totient is φ = 510632280.

The previous prime is 842543329. The next prime is 842543371. The reversal of 842543361 is 163345248.

842543361 is a `hidden beast` number, since 84 + 2 + 543 + 36 + 1 = 666.

It is not a de Polignac number, because 842543361 - 2⁵ = 842543329 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (842543371) 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, 4255171 + ... + 4255368.

It is an arithmetic number, because the mean of its divisors is an integer number (110637020).

Almost surely, 2^842543361 is an apocalyptic number.

It is an amenable number.

842543361 is a deficient number, since it is larger than the sum of its proper divisors (485100879).

842543361 is a wasteful number, since it uses less digits than its factorization.

842543361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8510556 (or 8510553 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 842543361 is about 29026.5974754190. The cubic root of 842543361 is about 944.4901221886.

The spelling of 842543361 in words is "eight hundred forty-two million, five hundred forty-three thousand, three hundred sixty-one".