50689820736 has 315 divisors, whose sum is σ = 155788848061. Its totient is φ = 16296823296.

The previous prime is 50689820729. The next prime is 50689820749. The reversal of 50689820736 is 63702898605.

It is a happy number.

The square root of 50689820736 is 225144.

It is a perfect power (a square), and thus also a powerful number.

50689820736 is a `hidden beast` number, since 506 + 89 + 8 + 20 + 7 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36542145600 + 14147675136 = 191160^2 + 118944^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 859149475 + ... + 859149533.

Almost surely, 2^50689820736 is an apocalyptic number.

50689820736 is the 225144-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50689820736

50689820736 is an abundant number, since it is smaller than the sum of its proper divisors (105099027325).

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

50689820736 is an frugal number, since it uses more digits than its factorization.

50689820736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 50689820736 in words is "fifty billion, six hundred eighty-nine million, eight hundred twenty thousand, seven hundred thirty-six".