6512409838 has 16 divisors (see below), whose sum is σ = 10696296240. Its totient is φ = 2949179200.

The previous prime is 6512409829. The next prime is 6512409851. The reversal of 6512409838 is 8389042156.

It is a super-2 number, since 2×6512409838² = 84822963796158372488, which contains 22 as substring.

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, 544303 + ... + 556138.

It is an arithmetic number, because the mean of its divisors is an integer number (668518515).

Almost surely, 2^6512409838 is an apocalyptic number.

6512409838 is a deficient number, since it is larger than the sum of its proper divisors (4183886402).

6512409838 is a wasteful number, since it uses less digits than its factorization.

6512409838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100723.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 6512409838 is about 80699.5033318050. The cubic root of 6512409838 is about 1867.4425120488.

The spelling of 6512409838 in words is "six billion, five hundred twelve million, four hundred nine thousand, eight hundred thirty-eight".