50980688640 has 432 divisors, whose sum is σ = 210358407168. Its totient is φ = 11145682944.

The previous prime is 50980688621. The next prime is 50980688651. The reversal of 50980688640 is 4688608905.

It is a happy number.

It is a super-2 number, since 2×50980688640² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1840977 + ... + 1868463.

Almost surely, 2^50980688640 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 50980688640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105179203584).

50980688640 is an abundant number, since it is smaller than the sum of its proper divisors (159377718528).

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

50980688640 is a wasteful number, since it uses less digits than its factorization.

50980688640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27544 (or 27527 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 50980688640 in words is "fifty billion, nine hundred eighty million, six hundred eighty-eight thousand, six hundred forty".