50168987313 has 8 divisors (see below), whose sum is σ = 66894797376. Its totient is φ = 33444584400.

The previous prime is 50168987257. The next prime is 50168987327. The reversal of 50168987313 is 31378986105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50168987313 - 2⁹ = 50168986801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50168987333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265578 + ... + 413363.

It is an arithmetic number, because the mean of its divisors is an integer number (8361849672).

Almost surely, 2^50168987313 is an apocalyptic number.

It is an amenable number.

50168987313 is a deficient number, since it is larger than the sum of its proper divisors (16725810063).

50168987313 is a wasteful number, since it uses less digits than its factorization.

50168987313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703575.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 50168987313 in words is "fifty billion, one hundred sixty-eight million, nine hundred eighty-seven thousand, three hundred thirteen".