50851971072 has 960 divisors, whose sum is σ = 195261794640. Its totient is φ = 13079937024.

The previous prime is 50851971031. The next prime is 50851971083. The reversal of 50851971072 is 27017915805.

50851971072 is a `hidden beast` number, since 50 + 8 + 519 + 7 + 10 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2210955253 + ... + 2210955275.

Almost surely, 2^50851971072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50851971072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97630897320).

50851971072 is an abundant number, since it is smaller than the sum of its proper divisors (144409823568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50851971072 is an equidigital number, since it uses as much as digits as its factorization.

50851971072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 45.

The spelling of 50851971072 in words is "fifty billion, eight hundred fifty-one million, nine hundred seventy-one thousand, seventy-two".