12785410422 has 96 divisors (see below), whose sum is σ = 31182109920. Its totient is φ = 3762201600.

The previous prime is 12785410411. The next prime is 12785410459. The reversal of 12785410422 is 22401458721.

12785410422 is a `hidden beast` number, since 1 + 2 + 78 + 541 + 0 + 42 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 576328 + ... + 598100.

It is an arithmetic number, because the mean of its divisors is an integer number (324813645).

Almost surely, 2^12785410422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12785410422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15591054960).

12785410422 is an abundant number, since it is smaller than the sum of its proper divisors (18396699498).

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

12785410422 is a wasteful number, since it uses less digits than its factorization.

12785410422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21918 (or 21915 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The spelling of 12785410422 in words is "twelve billion, seven hundred eighty-five million, four hundred ten thousand, four hundred twenty-two".