12604197834 has 128 divisors (see below), whose sum is σ = 30790886400. Its totient is φ = 3805885440.

The previous prime is 12604197811. The next prime is 12604197857. The reversal of 12604197834 is 43879140621.

12604197834 is a `hidden beast` number, since 1 + 2 + 604 + 1 + 9 + 7 + 8 + 34 = 666.

It is an interprime number because it is at equal distance from previous prime (12604197811) and next prime (12604197857).

It is a super-2 number, since 2×12604197834² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12604197834.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2629512 + ... + 2634300.

It is an arithmetic number, because the mean of its divisors is an integer number (240553800).

Almost surely, 2^12604197834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12604197834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15395443200).

12604197834 is an abundant number, since it is smaller than the sum of its proper divisors (18186688566).

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

12604197834 is a wasteful number, since it uses less digits than its factorization.

12604197834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925 (or 4919 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 12604197834 in words is "twelve billion, six hundred four million, one hundred ninety-seven thousand, eight hundred thirty-four".