409746997808 has 80 divisors (see below), whose sum is σ = 820862253120. Its totient is φ = 197989401600.

The previous prime is 409746997783. The next prime is 409746997817. The reversal of 409746997808 is 808799647904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110471858 + ... + 110475566.

It is an arithmetic number, because the mean of its divisors is an integer number (10260778164).

Almost surely, 2^409746997808 is an apocalyptic number.

It is an amenable number.

409746997808 is an abundant number, since it is smaller than the sum of its proper divisors (411115255312).

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

409746997808 is a wasteful number, since it uses less digits than its factorization.

409746997808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966 (or 4960 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 71.

The spelling of 409746997808 in words is "four hundred nine billion, seven hundred forty-six million, nine hundred ninety-seven thousand, eight hundred eight".