40693908106 has 4 divisors (see below), whose sum is σ = 61040862162. Its totient is φ = 20346954052.

The previous prime is 40693908089. The next prime is 40693908107. The reversal of 40693908106 is 60180939604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29771777025 + 10922131081 = 172545^2 + 104509^2 .

It is not an unprimeable number, because it can be changed into a prime (40693908107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173477025 + ... + 10173477028.

Almost surely, 2^40693908106 is an apocalyptic number.

40693908106 is a deficient number, since it is larger than the sum of its proper divisors (20346954056).

40693908106 is a wasteful number, since it uses less digits than its factorization.

40693908106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20346954055.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 40693908106 in words is "forty billion, six hundred ninety-three million, nine hundred eight thousand, one hundred six".