50899701899 has 4 divisors (see below), whose sum is σ = 50900411136. Its totient is φ = 50898992664.

The previous prime is 50899701893. The next prime is 50899701947. The reversal of 50899701899 is 99810799805.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50899701899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50899701893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233084 + ... + 395129.

It is an arithmetic number, because the mean of its divisors is an integer number (12725102784).

Almost surely, 2^50899701899 is an apocalyptic number.

50899701899 is a deficient number, since it is larger than the sum of its proper divisors (709237).

50899701899 is an equidigital number, since it uses as much as digits as its factorization.

50899701899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709236.

The product of its (nonzero) digits is 14696640, while the sum is 65.

The spelling of 50899701899 in words is "fifty billion, eight hundred ninety-nine million, seven hundred one thousand, eight hundred ninety-nine".