12445916894 has 4 divisors (see below), whose sum is σ = 18668875344. Its totient is φ = 6222958446.

The previous prime is 12445916893. The next prime is 12445916927. The reversal of 12445916894 is 49861954421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49861954421 = 409 ⋅121911869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445916893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3111479222 + ... + 3111479225.

It is an arithmetic number, because the mean of its divisors is an integer number (4667218836).

Almost surely, 2^12445916894 is an apocalyptic number.

12445916894 is a deficient number, since it is larger than the sum of its proper divisors (6222958450).

12445916894 is an equidigital number, since it uses as much as digits as its factorization.

12445916894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222958449.

The product of its digits is 2488320, while the sum is 53.

The spelling of 12445916894 in words is "twelve billion, four hundred forty-five million, nine hundred sixteen thousand, eight hundred ninety-four".