412805531778 has 64 divisors (see below), whose sum is σ = 855072028800. Its totient is φ = 132772147200.

The previous prime is 412805531773. The next prime is 412805531779. The reversal of 412805531778 is 877135508214.

It is a self number, because there is not a number n which added to its sum of digits gives 412805531778.

It is not an unprimeable number, because it can be changed into a prime (412805531771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27569878 + ... + 27584846.

It is an arithmetic number, because the mean of its divisors is an integer number (13360500450).

Almost surely, 2^412805531778 is an apocalyptic number.

412805531778 is an abundant number, since it is smaller than the sum of its proper divisors (442266497022).

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

412805531778 is a wasteful number, since it uses less digits than its factorization.

412805531778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16307.

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 412805531778 in words is "four hundred twelve billion, eight hundred five million, five hundred thirty-one thousand, seven hundred seventy-eight".