487981216257 has 8 divisors (see below), whose sum is σ = 650699383584. Its totient is φ = 325291929888.

The previous prime is 487981216223. The next prime is 487981216273. The reversal of 487981216257 is 752612189784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 487981216257 - 2⁶ = 487981216193 is a prime.

It is a super-2 number, since 2×487981216257² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 487981216257.

It is not an unprimeable number, because it can be changed into a prime (487981216207) 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 7 ways as a sum of consecutive naturals, for example, 7180783 + ... + 7248420.

It is an arithmetic number, because the mean of its divisors is an integer number (81337422948).

Almost surely, 2^487981216257 is an apocalyptic number.

It is an amenable number.

487981216257 is a deficient number, since it is larger than the sum of its proper divisors (162718167327).

487981216257 is a wasteful number, since it uses less digits than its factorization.

487981216257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440479.

The product of its digits is 13547520, while the sum is 60.

The spelling of 487981216257 in words is "four hundred eighty-seven billion, nine hundred eighty-one million, two hundred sixteen thousand, two hundred fifty-seven".