1324408621885 has 16 divisors (see below), whose sum is σ = 1595111387184. Its totient is φ = 1055648005632.

The previous prime is 1324408621883. The next prime is 1324408622063. The reversal of 1324408621885 is 5881268044231.

It can be written as a sum of positive squares in 8 ways, for example, as 263914403076 + 1060494218809 = 513726^2 + 1029803^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324408621885 - 2¹ = 1324408621883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324408621883) 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, 5885809 + ... + 6106681.

It is an arithmetic number, because the mean of its divisors is an integer number (99694461699).

Almost surely, 2^{1324408621885} is an apocalyptic number.

It is an amenable number.

1324408621885 is a deficient number, since it is larger than the sum of its proper divisors (270702765299).

1324408621885 is a wasteful number, since it uses less digits than its factorization.

1324408621885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225264.

The product of its (nonzero) digits is 2949120, while the sum is 52.

The spelling of 1324408621885 in words is "one trillion, three hundred twenty-four billion, four hundred eight million, six hundred twenty-one thousand, eight hundred eighty-five".