12354878034 has 12 divisors (see below), whose sum is σ = 26768902446. Its totient is φ = 4118292672.

The previous prime is 12354878017. The next prime is 12354878047. The reversal of 12354878034 is 43087845321.

12354878034 is a `hidden beast` number, since 1 + 2 + 3 + 548 + 78 + 0 + 34 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12271100625 + 83777409 = 110775^2 + 9153^2 .

It is a super-3 number, since 3×12354878034³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 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, 343191039 + ... + 343191074.

Almost surely, 2^12354878034 is an apocalyptic number.

12354878034 is an abundant number, since it is smaller than the sum of its proper divisors (14414024412).

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

12354878034 is a wasteful number, since it uses less digits than its factorization.

12354878034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686382121 (or 686382118 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 12354878034 in words is "twelve billion, three hundred fifty-four million, eight hundred seventy-eight thousand, thirty-four".