50778668448 has 96 divisors (see below), whose sum is σ = 148932302400. Its totient is φ = 16831611648.

The previous prime is 50778668401. The next prime is 50778668477. The reversal of 50778668448 is 84486687705.

50778668448 is a `hidden beast` number, since 50 + 7 + 7 + 86 + 68 + 448 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 9511 + ... + 318822.

It is an arithmetic number, because the mean of its divisors is an integer number (1551378150).

Almost surely, 2^50778668448 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 50778668448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74466151200).

50778668448 is an abundant number, since it is smaller than the sum of its proper divisors (98153633952).

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

50778668448 is a wasteful number, since it uses less digits than its factorization.

50778668448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328531 (or 328517 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 63.

The spelling of 50778668448 in words is "fifty billion, seven hundred seventy-eight million, six hundred sixty-eight thousand, four hundred forty-eight".