50666739218 has 16 divisors (see below), whose sum is σ = 76110469344. Its totient is φ = 25296606720.

The previous prime is 50666739209. The next prime is 50666739229. The reversal of 50666739218 is 81293766605.

It is a self number, because there is not a number n which added to its sum of digits gives 50666739218.

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 7 ways as a sum of consecutive naturals, for example, 6709721 + ... + 6717267.

It is an arithmetic number, because the mean of its divisors is an integer number (4756904334).

Almost surely, 2^50666739218 is an apocalyptic number.

50666739218 is a deficient number, since it is larger than the sum of its proper divisors (25443730126).

50666739218 is a wasteful number, since it uses less digits than its factorization.

50666739218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11977.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 50666739218 in words is "fifty billion, six hundred sixty-six million, seven hundred thirty-nine thousand, two hundred eighteen".