408255993794 has 32 divisors (see below), whose sum is σ = 669325809600. Its totient is φ = 185218316800.

The previous prime is 408255993721. The next prime is 408255993799. The reversal of 408255993794 is 497399552804.

It is a self number, because there is not a number n which added to its sum of digits gives 408255993794.

It is not an unprimeable number, because it can be changed into a prime (408255993799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27767057 + ... + 27781755.

It is an arithmetic number, because the mean of its divisors is an integer number (20916431550).

Almost surely, 2^408255993794 is an apocalyptic number.

408255993794 is a deficient number, since it is larger than the sum of its proper divisors (261069815806).

408255993794 is a wasteful number, since it uses less digits than its factorization.

408255993794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17026.

The product of its (nonzero) digits is 97977600, while the sum is 65.

The spelling of 408255993794 in words is "four hundred eight billion, two hundred fifty-five million, nine hundred ninety-three thousand, seven hundred ninety-four".