108408908429 has 4 divisors (see below), whose sum is σ = 109482264060. Its totient is φ = 107335552800.

The previous prime is 108408908417. The next prime is 108408908471. The reversal of 108408908429 is 924809804801.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54196771204 + 54212137225 = 232802^2 + 232835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108408908429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108408901429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536677664 + ... + 536677865.

It is an arithmetic number, because the mean of its divisors is an integer number (27370566015).

Almost surely, 2^108408908429 is an apocalyptic number.

It is an amenable number.

108408908429 is a deficient number, since it is larger than the sum of its proper divisors (1073355631).

108408908429 is a wasteful number, since it uses less digits than its factorization.

108408908429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073355630.

The product of its (nonzero) digits is 1327104, while the sum is 53.

The spelling of 108408908429 in words is "one hundred eight billion, four hundred eight million, nine hundred eight thousand, four hundred twenty-nine".