1224747262489 has 9 divisors (see below), whose sum is σ = 1301049084607. Its totient is φ = 1152685598944.

The previous prime is 1224747262483. The next prime is 1224747262513. The reversal of 1224747262489 is 9842627474221.

The square root of 1224747262489 is 1106683.

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

It can be written as a sum of positive squares in only one way, i.e., 953522955225 + 271224307264 = 976485^2 + 520792^2 .

It is not a de Polignac number, because 1224747262489 - 2⁹ = 1224747261977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224747262483) 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, 18781062 + ... + 18846160.

Almost surely, 2^{1224747262489} is an apocalyptic number.

1224747262489 is the 1106683-rd square number.

1224747262489 is the 553342-nd centered octagonal number.

It is an amenable number.

1224747262489 is a deficient number, since it is larger than the sum of its proper divisors (76301822118).

1224747262489 is an frugal number, since it uses more digits than its factorization.

1224747262489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130232 (or 65116 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 58.

The spelling of 1224747262489 in words is "one trillion, two hundred twenty-four billion, seven hundred forty-seven million, two hundred sixty-two thousand, four hundred eighty-nine".