50781546321 has 24 divisors (see below), whose sum is σ = 74666229792. Its totient is φ = 30676377600.

The previous prime is 50781546293. The next prime is 50781546323. The reversal of 50781546321 is 12364518705.

It is a happy number.

It is not a de Polignac number, because 50781546321 - 2⁵ = 50781546289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50781546323) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 116400 + ... + 339281.

It is an arithmetic number, because the mean of its divisors is an integer number (3111092908).

Almost surely, 2^50781546321 is an apocalyptic number.

It is an amenable number.

50781546321 is a deficient number, since it is larger than the sum of its proper divisors (23884683471).

50781546321 is a wasteful number, since it uses less digits than its factorization.

50781546321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456013 (or 456002 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 50781546321 in words is "fifty billion, seven hundred eighty-one million, five hundred forty-six thousand, three hundred twenty-one".