3746574458449 has 9 divisors (see below), whose sum is σ = 3776555122011. Its totient is φ = 3716829985680.

The previous prime is 3746574458359. The next prime is 3746574458489. The reversal of 3746574458449 is 9448544756473.

The square root of 3746574458449 is 1935607.

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

3746574458449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2965259892049 + 781314566400 = 1721993^2 + 883920^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3746574458449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3746574458489) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 245814469 + ... + 245829709.

It is an arithmetic number, because the mean of its divisors is an integer number (419617235779).

Almost surely, 2^{3746574458449} is an apocalyptic number.

3746574458449 is the 1935607-th square number.

3746574458449 is the 967804-th centered octagonal number.

It is an amenable number.

3746574458449 is a deficient number, since it is larger than the sum of its proper divisors (29980663562).

3746574458449 is an frugal number, since it uses more digits than its factorization.

3746574458449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30736 (or 15368 counting only the distinct ones).

The product of its digits is 1625702400, while the sum is 70.

The spelling of 3746574458449 in words is "three trillion, seven hundred forty-six billion, five hundred seventy-four million, four hundred fifty-eight thousand, four hundred forty-nine".