12158359443 has 12 divisors (see below), whose sum is σ = 18212522328. Its totient is φ = 8105572800.

The previous prime is 12158359441. The next prime is 12158359457. The reversal of 12158359443 is 34495385121.

12158359443 is a `hidden beast` number, since 1 + 2 + 1 + 58 + 3 + 594 + 4 + 3 = 666.

It is not a de Polignac number, because 12158359443 - 2¹ = 12158359441 is a prime.

It is a super-3 number, since 3×12158359443³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12158359441) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25016958 + ... + 25017443.

It is an arithmetic number, because the mean of its divisors is an integer number (1517710194).

Almost surely, 2^12158359443 is an apocalyptic number.

12158359443 is a deficient number, since it is larger than the sum of its proper divisors (6054162885).

12158359443 is an frugal number, since it uses more digits than its factorization.

12158359443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50034416 (or 50034404 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 12158359443 in words is "twelve billion, one hundred fifty-eight million, three hundred fifty-nine thousand, four hundred forty-three".