1324738846729 has 3 divisors (see below), whose sum is σ = 1324739997703. Its totient is φ = 1324737695756.

The previous prime is 1324738846679. The next prime is 1324738846741. The reversal of 1324738846729 is 9276488374231.

The square root of 1324738846729 is 1150973.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 213291567225 + 1111447279504 = 461835^2 + 1054252^2 .

It is not a de Polignac number, because 1324738846729 - 2⁹ = 1324738846217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1324738841729) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 575487 + ... + 1726459.

Almost surely, 2^{1324738846729} is an apocalyptic number.

1324738846729 is the 1150973-rd square number.

1324738846729 is the 575487-th centered octagonal number.

It is an amenable number.

1324738846729 is a deficient number, since it is larger than the sum of its proper divisors (1150974).

1324738846729 is an frugal number, since it uses more digits than its factorization.

1324738846729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301946 (or 1150973 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 64.

Multiplying 1324738846729 by its sum of digits (64), we get a square (84783286190656 = 9207784²).

The spelling of 1324738846729 in words is "one trillion, three hundred twenty-four billion, seven hundred thirty-eight million, eight hundred forty-six thousand, seven hundred twenty-nine".