409368108629 has 4 divisors (see below), whose sum is σ = 422573531520. Its totient is φ = 396162685740.

The previous prime is 409368108571. The next prime is 409368108641. The reversal of 409368108629 is 926801863904.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409368108629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409368108659) 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, 6602711399 + ... + 6602711460.

It is an arithmetic number, because the mean of its divisors is an integer number (105643382880).

Almost surely, 2^409368108629 is an apocalyptic number.

It is an amenable number.

409368108629 is a deficient number, since it is larger than the sum of its proper divisors (13205422891).

409368108629 is a wasteful number, since it uses less digits than its factorization.

409368108629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13205422890.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 409368108629 in words is "four hundred nine billion, three hundred sixty-eight million, one hundred eight thousand, six hundred twenty-nine".