40106108642 has 8 divisors (see below), whose sum is σ = 62774778816. Its totient is φ = 19181182372.

The previous prime is 40106108621. The next prime is 40106108657. The reversal of 40106108642 is 24680160104.

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 = 40106108599 and 40106108608.

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, 435935918 + ... + 435936009.

It is an arithmetic number, because the mean of its divisors is an integer number (7846847352).

Almost surely, 2^40106108642 is an apocalyptic number.

40106108642 is a deficient number, since it is larger than the sum of its proper divisors (22668670174).

40106108642 is a wasteful number, since it uses less digits than its factorization.

40106108642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871871952.

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 40106108642 its reverse (24680160104), we get a palindrome (64786268746).

The spelling of 40106108642 in words is "forty billion, one hundred six million, one hundred eight thousand, six hundred forty-two".