642811141118246 has 8 divisors (see below), whose sum is σ = 1006139177402544. Its totient is φ = 307431415317400.

The previous prime is 642811141118227. The next prime is 642811141118291.

It is a happy number.

642811141118246 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 642811141118194 and 642811141118203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6987077620805 + ... + 6987077620896.

It is an arithmetic number, because the mean of its divisors is an integer number (125767397175318).

Almost surely, 2^{642811141118246} is an apocalyptic number.

642811141118246 is a deficient number, since it is larger than the sum of its proper divisors (363328036284298).

642811141118246 is a wasteful number, since it uses less digits than its factorization.

642811141118246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13974155241726.

The product of its digits is 589824, while the sum is 50.

The spelling of 642811141118246 in words is "six hundred forty-two trillion, eight hundred eleven billion, one hundred forty-one million, one hundred eighteen thousand, two hundred forty-six".