12936448851 has 16 divisors (see below), whose sum is σ = 18231776640. Its totient is φ = 8136478080.

The previous prime is 12936448849. The next prime is 12936448867. The reversal of 12936448851 is 15884463921.

It is not a de Polignac number, because 12936448851 - 2¹ = 12936448849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12936448794 and 12936448803.

It is not an unprimeable number, because it can be changed into a prime (12936448891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457125 + ... + 484598.

It is an arithmetic number, because the mean of its divisors is an integer number (1139486040).

Almost surely, 2^12936448851 is an apocalyptic number.

12936448851 is a deficient number, since it is larger than the sum of its proper divisors (5295327789).

12936448851 is a wasteful number, since it uses less digits than its factorization.

12936448851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941986.

The product of its digits is 1658880, while the sum is 51.

The spelling of 12936448851 in words is "twelve billion, nine hundred thirty-six million, four hundred forty-eight thousand, eight hundred fifty-one".