405768785712 has 20 divisors (see below), whose sum is σ = 1048236029880. Its totient is φ = 135256261888.

The previous prime is 405768785707. The next prime is 405768785729. The reversal of 405768785712 is 217587867504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4226758137 + ... + 4226758232.

It is an arithmetic number, because the mean of its divisors is an integer number (52411801494).

Almost surely, 2^405768785712 is an apocalyptic number.

It is an amenable number.

405768785712 is an abundant number, since it is smaller than the sum of its proper divisors (642467244168).

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

405768785712 is a wasteful number, since it uses less digits than its factorization.

405768785712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8453516380 (or 8453516374 counting only the distinct ones).

The product of its (nonzero) digits is 26342400, while the sum is 60.

It can be divided in two parts, 40576 and 8785712, that added together give a palindrome (8826288).

The spelling of 405768785712 in words is "four hundred five billion, seven hundred sixty-eight million, seven hundred eighty-five thousand, seven hundred twelve".