50390939912 has 16 divisors (see below), whose sum is σ = 100040836860. Its totient is φ = 23713383424.

The previous prime is 50390939843. The next prime is 50390939933. The reversal of 50390939912 is 21993909305.

It can be written as a sum of positive squares in 2 ways, for example, as 49651426276 + 739513636 = 222826^2 + 27194^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185260673 + ... + 185260944.

Almost surely, 2^50390939912 is an apocalyptic number.

It is an amenable number.

50390939912 is a deficient number, since it is larger than the sum of its proper divisors (49649896948).

50390939912 is a wasteful number, since it uses less digits than its factorization.

50390939912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370521640 (or 370521636 counting only the distinct ones).

The product of its (nonzero) digits is 590490, while the sum is 50.

The spelling of 50390939912 in words is "fifty billion, three hundred ninety million, nine hundred thirty-nine thousand, nine hundred twelve".