409939131606 has 64 divisors (see below), whose sum is σ = 848077848576. Its totient is φ = 132049159200.

The previous prime is 409939131599. The next prime is 409939131619. The reversal of 409939131606 is 606131939904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4444821 + ... + 4536111.

It is an arithmetic number, because the mean of its divisors is an integer number (13251216384).

Almost surely, 2^409939131606 is an apocalyptic number.

409939131606 is an abundant number, since it is smaller than the sum of its proper divisors (438138716970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409939131606 is a wasteful number, since it uses less digits than its factorization.

409939131606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91577.

The product of its (nonzero) digits is 944784, while the sum is 51.

The spelling of 409939131606 in words is "four hundred nine billion, nine hundred thirty-nine million, one hundred thirty-one thousand, six hundred six".