12450420044 has 12 divisors (see below), whose sum is σ = 21850668000. Its totient is φ = 6207372048.

The previous prime is 12450420023. The next prime is 12450420049. The reversal of 12450420044 is 44002405421.

It is a junction number, because it is equal to n+sod(n) for n = 12450419995 and 12450420022.

It is not an unprimeable number, because it can be changed into a prime (12450420049) 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, 4457924 + ... + 4460715.

It is an arithmetic number, because the mean of its divisors is an integer number (1820889000).

Almost surely, 2^12450420044 is an apocalyptic number.

It is an amenable number.

12450420044 is a deficient number, since it is larger than the sum of its proper divisors (9400247956).

12450420044 is a wasteful number, since it uses less digits than its factorization.

12450420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8918992 (or 8918990 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 12450420044 its reverse (44002405421), we get a palindrome (56452825465).

The spelling of 12450420044 in words is "twelve billion, four hundred fifty million, four hundred twenty thousand, forty-four".