1447471265881 has 9 divisors (see below), whose sum is σ = 1455320366773. Its totient is φ = 1439664291580.

The previous prime is 1447471265869. The next prime is 1447471265899. The reversal of 1447471265881 is 1885621747441.

The square root of 1447471265881 is 1203109.

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

It is not a de Polignac number, because 1447471265881 - 2²¹ = 1447469168729 is a prime.

It is a super-2 number, since 2×1447471265881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1447471265861) 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, 229790670 + ... + 229796968.

Almost surely, 2^{1447471265881} is an apocalyptic number.

1447471265881 is the 1203109-th square number.

1447471265881 is the 601555-th centered octagonal number.

It is an amenable number.

1447471265881 is a deficient number, since it is larger than the sum of its proper divisors (7849100892).

1447471265881 is an frugal number, since it uses more digits than its factorization.

1447471265881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12980 (or 6490 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 58.

The spelling of 1447471265881 in words is "one trillion, four hundred forty-seven billion, four hundred seventy-one million, two hundred sixty-five thousand, eight hundred eighty-one".