487654187121 has 12 divisors (see below), whose sum is σ = 704452910148. Its totient is φ = 325073470464.

The previous prime is 487654187087. The next prime is 487654187177. The reversal of 487654187121 is 121781456784.

It is a happy number.

487654187121 is a `hidden beast` number, since 4 + 8 + 7 + 6 + 541 + 8 + 71 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 187109018721 + 300545168400 = 432561^2 + 548220^2 .

It is not a de Polignac number, because 487654187121 - 2⁹ = 487654186609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487654187221) 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 11 ways as a sum of consecutive naturals, for example, 2337840 + ... + 2537873.

It is an arithmetic number, because the mean of its divisors is an integer number (58704409179).

Almost surely, 2^487654187121 is an apocalyptic number.

It is an amenable number.

487654187121 is a deficient number, since it is larger than the sum of its proper divisors (216798723027).

487654187121 is a wasteful number, since it uses less digits than its factorization.

487654187121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886832 (or 4886829 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The spelling of 487654187121 in words is "four hundred eighty-seven billion, six hundred fifty-four million, one hundred eighty-seven thousand, one hundred twenty-one".