6487485521 has 8 divisors (see below), whose sum is σ = 7094152800. Its totient is φ = 5883634240.

The previous prime is 6487485517. The next prime is 6487485523. The reversal of 6487485521 is 1255847846.

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

It is not a de Polignac number, because 6487485521 - 2² = 6487485517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6487485521.

It is not an unprimeable number, because it can be changed into a prime (6487485523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699176 + ... + 708393.

It is an arithmetic number, because the mean of its divisors is an integer number (886769100).

Almost surely, 2^6487485521 is an apocalyptic number.

It is an amenable number.

6487485521 is a deficient number, since it is larger than the sum of its proper divisors (606667279).

6487485521 is a wasteful number, since it uses less digits than its factorization.

6487485521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407999.

The product of its digits is 2150400, while the sum is 50.

The square root of 6487485521 is about 80544.9285864728. The cubic root of 6487485521 is about 1865.0571055404.

The spelling of 6487485521 in words is "six billion, four hundred eighty-seven million, four hundred eighty-five thousand, five hundred twenty-one".