6487716485 has 8 divisors (see below), whose sum is σ = 7932151800. Its totient is φ = 5092245184.

The previous prime is 6487716451. The next prime is 6487716503. The reversal of 6487716485 is 5846177846.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2472973441 + 4014743044 = 49729^2 + 63362^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6487716485 - 2⁸ = 6487716229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6487716485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12240710 + ... + 12241239.

It is an arithmetic number, because the mean of its divisors is an integer number (991518975).

Almost surely, 2^6487716485 is an apocalyptic number.

It is an amenable number.

6487716485 is a deficient number, since it is larger than the sum of its proper divisors (1444435315).

6487716485 is a wasteful number, since it uses less digits than its factorization.

6487716485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24482007.

The product of its digits is 9031680, while the sum is 56.

The square root of 6487716485 is about 80546.3623325101. The cubic root of 6487716485 is about 1865.0792382005.

The spelling of 6487716485 in words is "six billion, four hundred eighty-seven million, seven hundred sixteen thousand, four hundred eighty-five".