408783854878 has 32 divisors (see below), whose sum is σ = 721154880000. Its totient is φ = 170116425504.

The previous prime is 408783854861. The next prime is 408783854879. The reversal of 408783854878 is 878458387804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408783854879) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 532258 + ... + 1049221.

It is an arithmetic number, because the mean of its divisors is an integer number (22536090000).

Almost surely, 2^408783854878 is an apocalyptic number.

408783854878 is a deficient number, since it is larger than the sum of its proper divisors (312371025122).

408783854878 is a wasteful number, since it uses less digits than its factorization.

408783854878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582024.

The product of its (nonzero) digits is 385351680, while the sum is 70.

The spelling of 408783854878 in words is "four hundred eight billion, seven hundred eighty-three million, eight hundred fifty-four thousand, eight hundred seventy-eight".