1296450949924 has 27 divisors (see below), whose sum is σ = 2456792293683. Its totient is φ = 598348313472.

The previous prime is 1296450949891. The next prime is 1296450950029. The reversal of 1296450949924 is 4299490546921.

The square root of 1296450949924 is 1138618.

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

It can be written as a sum of positive squares in 4 ways, for example, as 39092407524 + 1257358542400 = 197718^2 + 1121320^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29582172 + ... + 29625964.

Almost surely, 2^{1296450949924} is an apocalyptic number.

1296450949924 is the 1138618-th square number.

It is an amenable number.

1296450949924 is a deficient number, since it is larger than the sum of its proper divisors (1160341343759).

1296450949924 is an frugal number, since it uses more digits than its factorization.

1296450949924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87616 (or 43808 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 64.

Multiplying 1296450949924 by its sum of digits (64), we get a square (82972860795136 = 9108944²).

The spelling of 1296450949924 in words is "one trillion, two hundred ninety-six billion, four hundred fifty million, nine hundred forty-nine thousand, nine hundred twenty-four".