6512938957 has 8 divisors (see below), whose sum is σ = 7766983296. Its totient is φ = 5339800752.

The previous prime is 6512938937. The next prime is 6512938979. The reversal of 6512938957 is 7598392156.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6512938957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6512938898 and 6512938907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512938937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20226358 + ... + 20226679.

It is an arithmetic number, because the mean of its divisors is an integer number (970872912).

Almost surely, 2^6512938957 is an apocalyptic number.

It is an amenable number.

6512938957 is a deficient number, since it is larger than the sum of its proper divisors (1254044339).

6512938957 is a wasteful number, since it uses less digits than its factorization.

6512938957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40453067.

The product of its digits is 4082400, while the sum is 55.

The square root of 6512938957 is about 80702.7815939451. The cubic root of 6512938957 is about 1867.4930858804.

The spelling of 6512938957 in words is "six billion, five hundred twelve million, nine hundred thirty-eight thousand, nine hundred fifty-seven".