409319912811 has 8 divisors (see below), whose sum is σ = 545833555264. Its totient is φ = 272843106120.

The previous prime is 409319912791. The next prime is 409319912821. The reversal of 409319912811 is 118219913904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 409319912811 - 2¹³ = 409319904619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409319912821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9183001 + ... + 9227466.

It is an arithmetic number, because the mean of its divisors is an integer number (68229194408).

Almost surely, 2^409319912811 is an apocalyptic number.

409319912811 is a deficient number, since it is larger than the sum of its proper divisors (136513642453).

409319912811 is a wasteful number, since it uses less digits than its factorization.

409319912811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18417881.

The product of its (nonzero) digits is 139968, while the sum is 48.

The spelling of 409319912811 in words is "four hundred nine billion, three hundred nineteen million, nine hundred twelve thousand, eight hundred eleven".