50851638551885 has 8 divisors (see below), whose sum is σ = 61049970849120. Its totient is φ = 40662641116944.

The previous prime is 50851638551843. The next prime is 50851638551911. The reversal of 50851638551885 is 58815583615805.

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

It is a cyclic number.

It is not a de Polignac number, because 50851638551885 - 2²⁸ = 50851370116429 is a prime.

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, 2333703587 + ... + 2333725376.

It is an arithmetic number, because the mean of its divisors is an integer number (7631246356140).

Almost surely, 2^{50851638551885} is an apocalyptic number.

It is an amenable number.

50851638551885 is a deficient number, since it is larger than the sum of its proper divisors (10198332297235).

50851638551885 is a wasteful number, since it uses less digits than its factorization.

50851638551885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667431147.

The product of its (nonzero) digits is 230400000, while the sum is 68.

The spelling of 50851638551885 in words is "fifty trillion, eight hundred fifty-one billion, six hundred thirty-eight million, five hundred fifty-one thousand, eight hundred eighty-five".