50640928380 has 1152 divisors, whose sum is σ = 210151065600. Its totient is φ = 9871663104.

The previous prime is 50640928307. The next prime is 50640928391. The reversal of 50640928380 is 8382904605.

50640928380 is a `hidden beast` number, since 506 + 40 + 9 + 28 + 3 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 858320791 + ... + 858320849.

It is an arithmetic number, because the mean of its divisors is an integer number (182422800).

Almost surely, 2^50640928380 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 50640928380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105075532800).

50640928380 is an abundant number, since it is smaller than the sum of its proper divisors (159510137220).

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

50640928380 is a wasteful number, since it uses less digits than its factorization.

50640928380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 50640928380 in words is "fifty billion, six hundred forty million, nine hundred twenty-eight thousand, three hundred eighty".