6487695813 has 16 divisors (see below), whose sum is σ = 9097445376. Its totient is φ = 4104500400.

The previous prime is 6487695811. The next prime is 6487695857. The reversal of 6487695813 is 3185967846.

It is not a de Polignac number, because 6487695813 - 2¹ = 6487695811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6487695811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361413 + ... + 378938.

It is an arithmetic number, because the mean of its divisors is an integer number (568590336).

Almost surely, 2^6487695813 is an apocalyptic number.

It is an amenable number.

6487695813 is a deficient number, since it is larger than the sum of its proper divisors (2609749563).

6487695813 is a wasteful number, since it uses less digits than its factorization.

6487695813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740504.

The product of its digits is 8709120, while the sum is 57.

The square root of 6487695813 is about 80546.2340087977. The cubic root of 6487695813 is about 1865.0772572797.

The spelling of 6487695813 in words is "six billion, four hundred eighty-seven million, six hundred ninety-five thousand, eight hundred thirteen".