1324631425444 has 12 divisors (see below), whose sum is σ = 2321721387468. Its totient is φ = 661282457600.

The previous prime is 1324631425393. The next prime is 1324631425451. The reversal of 1324631425444 is 4445241364231.

It can be written as a sum of positive squares in 2 ways, for example, as 781654028544 + 542977396900 = 884112^2 + 736870^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1324631425444.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258310897 + ... + 258316024.

It is an arithmetic number, because the mean of its divisors is an integer number (193476782289).

Almost surely, 2^{1324631425444} is an apocalyptic number.

It is an amenable number.

1324631425444 is a deficient number, since it is larger than the sum of its proper divisors (997089962024).

1324631425444 is a wasteful number, since it uses less digits than its factorization.

1324631425444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516627566 (or 516627564 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 43.

Adding to 1324631425444 its reverse (4445241364231), we get a palindrome (5769872789675).

The spelling of 1324631425444 in words is "one trillion, three hundred twenty-four billion, six hundred thirty-one million, four hundred twenty-five thousand, four hundred forty-four".