1347830443521 has 9 divisors (see below), whose sum is σ = 1946871227041. Its totient is φ = 898551307092.

The previous prime is 1347830443489. The next prime is 1347830443541. The reversal of 1347830443521 is 1253440387431.

It is a happy number.

The square root of 1347830443521 is 1160961.

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

1347830443521 is a `hidden beast` number, since 1 + 3 + 4 + 7 + 83 + 0 + 4 + 43 + 521 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1347830443521 - 2⁵ = 1347830443489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1347830443541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3289390 + ... + 3676376.

Almost surely, 2^{1347830443521} is an apocalyptic number.

1347830443521 is the 1160961-st square number.

1347830443521 is the 580481-st centered octagonal number.

It is an amenable number.

1347830443521 is a deficient number, since it is larger than the sum of its proper divisors (599040783520).

1347830443521 is an frugal number, since it uses more digits than its factorization.

1347830443521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773980 (or 386990 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 1347830443521 in words is "one trillion, three hundred forty-seven billion, eight hundred thirty million, four hundred forty-three thousand, five hundred twenty-one".