642124604413 has 16 divisors (see below), whose sum is σ = 649287346176. Its totient is φ = 635004120240.

The previous prime is 642124604383. The next prime is 642124604417. The reversal of 642124604413 is 314406421246.

It is a cyclic number.

It is not a de Polignac number, because 642124604413 - 2³³ = 633534669821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642124604417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109443906 + ... + 109449772.

It is an arithmetic number, because the mean of its divisors is an integer number (40580459136).

Almost surely, 2^642124604413 is an apocalyptic number.

It is an amenable number.

642124604413 is a deficient number, since it is larger than the sum of its proper divisors (7162741763).

642124604413 is a wasteful number, since it uses less digits than its factorization.

642124604413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 642124604413 in words is "six hundred forty-two billion, one hundred twenty-four million, six hundred four thousand, four hundred thirteen".