12782888194834 has 4 divisors (see below), whose sum is σ = 19174332292254. Its totient is φ = 6391444097416.

The previous prime is 12782888194763. The next prime is 12782888194841. The reversal of 12782888194834 is 43849188828721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12205569360609 + 577318834225 = 3493647^2 + 759815^2 .

It is a super-3 number, since 3×12782888194834³ (a number of 40 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 3195722048707 + ... + 3195722048710.

Almost surely, 2^{12782888194834} is an apocalyptic number.

12782888194834 is a deficient number, since it is larger than the sum of its proper divisors (6391444097420).

12782888194834 is an equidigital number, since it uses as much as digits as its factorization.

12782888194834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391444097419.

The product of its digits is 396361728, while the sum is 73.

The spelling of 12782888194834 in words is "twelve trillion, seven hundred eighty-two billion, eight hundred eighty-eight million, one hundred ninety-four thousand, eight hundred thirty-four".