12881795158 has 4 divisors (see below), whose sum is σ = 19322692740. Its totient is φ = 6440897578.

The previous prime is 12881795153. The next prime is 12881795177. The reversal of 12881795158 is 85159718821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85159718821 = 157907 ⋅539303.

It is a junction number, because it is equal to n+sod(n) for n = 12881795099 and 12881795108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12881795153) 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 as a sum of consecutive naturals, namely, 3220448788 + ... + 3220448791.

It is an arithmetic number, because the mean of its divisors is an integer number (4830673185).

Almost surely, 2^12881795158 is an apocalyptic number.

12881795158 is a deficient number, since it is larger than the sum of its proper divisors (6440897582).

12881795158 is an equidigital number, since it uses as much as digits as its factorization.

12881795158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440897581.

The product of its digits is 1612800, while the sum is 55.

The spelling of 12881795158 in words is "twelve billion, eight hundred eighty-one million, seven hundred ninety-five thousand, one hundred fifty-eight".