50381219905 has 16 divisors (see below), whose sum is σ = 62801758800. Its totient is φ = 38753648640.

The previous prime is 50381219897. The next prime is 50381219923. The reversal of 50381219905 is 50991218305.

It is a happy number.

50381219905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1075905601 + 49305314304 = 32801^2 + 222048^2 .

It is not a de Polignac number, because 50381219905 - 2³ = 50381219897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685920 + ... + 755809.

It is an arithmetic number, because the mean of its divisors is an integer number (3925109925).

Almost surely, 2^50381219905 is an apocalyptic number.

It is an amenable number.

50381219905 is a deficient number, since it is larger than the sum of its proper divisors (12420538895).

50381219905 is a wasteful number, since it uses less digits than its factorization.

50381219905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442004.

The product of its (nonzero) digits is 97200, while the sum is 43.

The spelling of 50381219905 in words is "fifty billion, three hundred eighty-one million, two hundred nineteen thousand, nine hundred five".