1487187567009 has 9 divisors (see below), whose sum is σ = 2148165103539. Its totient is φ = 991455939000.

The previous prime is 1487187566983. The next prime is 1487187567109. The reversal of 1487187567009 is 9007657817841.

The square root of 1487187567009 is 1219503.

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

1487187567009 is a `hidden beast` number, since 1 + 487 + 1 + 87 + 5 + 6 + 70 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1263931317009 + 223256250000 = 1124247^2 + 472500^2 .

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

It is not a de Polignac number, because 1487187567009 - 2⁹ = 1487187566497 is a prime.

It is a super-2 number, since 2×1487187567009² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1487187567109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3455259 + ... + 3861759.

Almost surely, 2^{1487187567009} is an apocalyptic number.

1487187567009 is the 1219503-rd square number.

1487187567009 is the 609752-nd centered octagonal number.

It is an amenable number.

1487187567009 is a deficient number, since it is larger than the sum of its proper divisors (660977536530).

1487187567009 is an frugal number, since it uses more digits than its factorization.

1487187567009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813008 (or 406504 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 63.

The spelling of 1487187567009 in words is "one trillion, four hundred eighty-seven billion, one hundred eighty-seven million, five hundred sixty-seven thousand, nine".