19910412234 has 12 divisors (see below), whose sum is σ = 43139226546. Its totient is φ = 6636804072.

The previous prime is 19910412199. The next prime is 19910412281. The reversal of 19910412234 is 43221401991.

19910412234 is a `hidden beast` number, since 1 + 9 + 9 + 1 + 0 + 412 + 234 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19397525625 + 512886609 = 139275^2 + 22647^2 .

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, 553066989 + ... + 553067024.

Almost surely, 2^19910412234 is an apocalyptic number.

19910412234 is an abundant number, since it is smaller than the sum of its proper divisors (23228814312).

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

19910412234 is a wasteful number, since it uses less digits than its factorization.

19910412234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106134021 (or 1106134018 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 19910412234 in words is "nineteen billion, nine hundred ten million, four hundred twelve thousand, two hundred thirty-four".