12855922434 has 12 divisors (see below), whose sum is σ = 27854498646. Its totient is φ = 4285307472.

The previous prime is 12855922423. The next prime is 12855922477. The reversal of 12855922434 is 43422955821.

12855922434 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 592 + 24 + 34 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11288000025 + 1567922409 = 106245^2 + 39597^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12855922434.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357108939 + ... + 357108974.

Almost surely, 2^12855922434 is an apocalyptic number.

12855922434 is an abundant number, since it is smaller than the sum of its proper divisors (14998576212).

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

12855922434 is a wasteful number, since it uses less digits than its factorization.

12855922434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714217921 (or 714217918 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 12855922434 in words is "twelve billion, eight hundred fifty-five million, nine hundred twenty-two thousand, four hundred thirty-four".