12465326644 has 12 divisors (see below), whose sum is σ = 21835084768. Its totient is φ = 6226731000.

The previous prime is 12465326639. The next prime is 12465326647. The reversal of 12465326644 is 44662356421.

It is a self number, because there is not a number n which added to its sum of digits gives 12465326644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12465326647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478352 + ... + 1486759.

Almost surely, 2^12465326644 is an apocalyptic number.

It is an amenable number.

12465326644 is a deficient number, since it is larger than the sum of its proper divisors (9369758124).

12465326644 is a wasteful number, since it uses less digits than its factorization.

12465326644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966166 (or 2966164 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

The spelling of 12465326644 in words is "twelve billion, four hundred sixty-five million, three hundred twenty-six thousand, six hundred forty-four".