1405223287785 has 32 divisors (see below), whose sum is σ = 2498406478080. Its totient is φ = 749382897024.

The previous prime is 1405223287781. The next prime is 1405223287829. The reversal of 1405223287785 is 5877823225041.

1405223287785 is a `hidden beast` number, since 1 + 4 + 0 + 522 + 32 + 8 + 7 + 7 + 85 = 666.

It is not a de Polignac number, because 1405223287785 - 2² = 1405223287781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1405223287781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 994557 + ... + 1949253.

It is an arithmetic number, because the mean of its divisors is an integer number (78075202440).

Almost surely, 2^{1405223287785} is an apocalyptic number.

1405223287785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1405223287785 is a deficient number, since it is larger than the sum of its proper divisors (1093183190295).

1405223287785 is a wasteful number, since it uses less digits than its factorization.

1405223287785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965614 (or 965608 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 1405223287785 in words is "one trillion, four hundred five billion, two hundred twenty-three million, two hundred eighty-seven thousand, seven hundred eighty-five".