642274106841 has 40 divisors (see below), whose sum is σ = 1001407042944. Its totient is φ = 409465679040.

The previous prime is 642274106813. The next prime is 642274106857. The reversal of 642274106841 is 148601472246.

642274106841 is a `hidden beast` number, since 6 + 4 + 227 + 410 + 6 + 8 + 4 + 1 = 666.

It is not a de Polignac number, because 642274106841 - 2⁶ = 642274106777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642274106941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7965196 + ... + 8045426.

Almost surely, 2^642274106841 is an apocalyptic number.

It is an amenable number.

642274106841 is a deficient number, since it is larger than the sum of its proper divisors (359132936103).

642274106841 is a wasteful number, since it uses less digits than its factorization.

642274106841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84563 (or 84554 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 642274106841 in words is "six hundred forty-two billion, two hundred seventy-four million, one hundred six thousand, eight hundred forty-one".