50639851088 has 80 divisors (see below), whose sum is σ = 105268190976. Its totient is φ = 23537479680.

The previous prime is 50639851081. The next prime is 50639851103. The reversal of 50639851088 is 88015893605.

It is a Cunningham number, because it is equal to 225033²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50639851081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16650848 + ... + 16653888.

Almost surely, 2^50639851088 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 50639851088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52634095488).

50639851088 is an abundant number, since it is smaller than the sum of its proper divisors (54628339888).

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

50639851088 is a wasteful number, since it uses less digits than its factorization.

50639851088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332 (or 4326 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 53.

The spelling of 50639851088 in words is "fifty billion, six hundred thirty-nine million, eight hundred fifty-one thousand, eighty-eight".