7049449521 has 45 divisors (see below), whose sum is σ = 11136756873. Its totient is φ = 4443216120.

The previous prime is 7049449501. The next prime is 7049449523. The reversal of 7049449521 is 1259449407.

The square root of 7049449521 is 83961.

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

7049449521 is a `hidden beast` number, since 70 + 4 + 94 + 495 + 2 + 1 = 666.

It is not a de Polignac number, because 7049449521 - 2¹¹ = 7049447473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7049449523) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 14357086 + ... + 14357576.

Almost surely, 2^7049449521 is an apocalyptic number.

7049449521 is the 83961-st square number.

7049449521 is the 41981-st centered octagonal number.

It is an amenable number.

7049449521 is a deficient number, since it is larger than the sum of its proper divisors (4087307352).

7049449521 is an frugal number, since it uses more digits than its factorization.

7049449521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The cubic root of 7049449521 is about 1917.4250712335.

The spelling of 7049449521 in words is "seven billion, forty-nine million, four hundred forty-nine thousand, five hundred twenty-one".