512138860385 has 8 divisors (see below), whose sum is σ = 614722360896. Its totient is φ = 409607269360.

The previous prime is 512138860367. The next prime is 512138860393. The reversal of 512138860385 is 583068831215.

It is a happy number.

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

It is not a de Polignac number, because 512138860385 - 2¹² = 512138856289 is a prime.

It is a Duffinian 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, 12955661 + ... + 12995130.

It is an arithmetic number, because the mean of its divisors is an integer number (76840295112).

Almost surely, 2^512138860385 is an apocalyptic number.

It is an amenable number.

512138860385 is a deficient number, since it is larger than the sum of its proper divisors (102583500511).

512138860385 is a wasteful number, since it uses less digits than its factorization.

512138860385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25954743.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 512138860385 in words is "five hundred twelve billion, one hundred thirty-eight million, eight hundred sixty thousand, three hundred eighty-five".