108438242679 has 12 divisors (see below), whose sum is σ = 168681711016. Its totient is φ = 66731226192.

The previous prime is 108438242629. The next prime is 108438242711. The reversal of 108438242679 is 976242834801.

108438242679 is a `hidden beast` number, since 108 + 43 + 8 + 2 + 426 + 79 = 666.

It is not a de Polignac number, because 108438242679 - 2¹² = 108438238583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108438242609) 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, 463411177 + ... + 463411410.

Almost surely, 2^108438242679 is an apocalyptic number.

108438242679 is a deficient number, since it is larger than the sum of its proper divisors (60243468337).

108438242679 is a wasteful number, since it uses less digits than its factorization.

108438242679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926822606 (or 926822603 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 108438242679 in words is "one hundred eight billion, four hundred thirty-eight million, two hundred forty-two thousand, six hundred seventy-nine".