50011831440 has 480 divisors, whose sum is σ = 179416373760. Its totient is φ = 12466262016.

The previous prime is 50011831439. The next prime is 50011831459. The reversal of 50011831440 is 4413811005.

It is a happy number.

50011831440 is a `hidden beast` number, since 500 + 1 + 18 + 3 + 144 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 73872382 + ... + 73873058.

It is an arithmetic number, because the mean of its divisors is an integer number (373784112).

Almost surely, 2^50011831440 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 50011831440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89708186880).

50011831440 is an abundant number, since it is smaller than the sum of its proper divisors (129404542320).

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

50011831440 is a wasteful number, since it uses less digits than its factorization.

50011831440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 50011831440 in words is "fifty billion, eleven million, eight hundred thirty-one thousand, four hundred forty".