6695139464 has 32 divisors (see below), whose sum is σ = 13531455000. Its totient is φ = 3087224832.

The previous prime is 6695139463. The next prime is 6695139467. The reversal of 6695139464 is 4649315966.

It can be written as a sum of positive squares in 4 ways, for example, as 3267036964 + 3428102500 = 57158^2 + 58550^2 .

It is not an unprimeable number, because it can be changed into a prime (6695139463) 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, 86312 + ... + 144360.

Almost surely, 2^6695139464 is an apocalyptic number.

It is an amenable number.

6695139464 is an abundant number, since it is smaller than the sum of its proper divisors (6836315536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6695139464 is a wasteful number, since it uses less digits than its factorization.

6695139464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59177 (or 59173 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 53.

The square root of 6695139464 is about 81823.8318828934. The cubic root of 6695139464 is about 1884.7476451101.

The spelling of 6695139464 in words is "six billion, six hundred ninety-five million, one hundred thirty-nine thousand, four hundred sixty-four".