6847315137 has 12 divisors (see below), whose sum is σ = 10651379284. Its totient is φ = 4213732320.

The previous prime is 6847315121. The next prime is 6847315147. The reversal of 6847315137 is 7315137486.

6847315137 is a `hidden beast` number, since 68 + 4 + 73 + 1 + 513 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2261858481 + 4585456656 = 47559^2 + 67716^2 .

It is not a de Polignac number, because 6847315137 - 2⁴ = 6847315121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6847315092 and 6847315101.

It is not an unprimeable number, because it can be changed into a prime (6847315147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29261914 + ... + 29262147.

Almost surely, 2^6847315137 is an apocalyptic number.

It is an amenable number.

6847315137 is a deficient number, since it is larger than the sum of its proper divisors (3804064147).

6847315137 is a wasteful number, since it uses less digits than its factorization.

6847315137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58524080 (or 58524077 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 6847315137 is about 82748.5053460182. The cubic root of 6847315137 is about 1898.9204520168.

The spelling of 6847315137 in words is "six billion, eight hundred forty-seven million, three hundred fifteen thousand, one hundred thirty-seven".