50003481691 has 4 divisors (see below), whose sum is σ = 50070781872. Its totient is φ = 49936181512.

The previous prime is 50003481679. The next prime is 50003481719. The reversal of 50003481691 is 19618430005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19618430005 = 5 ⋅3923686001.

It is a cyclic number.

It is not a de Polignac number, because 50003481691 - 2⁵ = 50003481659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50003481691.

It is not an unprimeable number, because it can be changed into a prime (50003481491) by changing a digit.

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, 33648976 + ... + 33650461.

It is an arithmetic number, because the mean of its divisors is an integer number (12517695468).

Almost surely, 2^50003481691 is an apocalyptic number.

50003481691 is a deficient number, since it is larger than the sum of its proper divisors (67300181).

50003481691 is an equidigital number, since it uses as much as digits as its factorization.

50003481691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67300180.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 50003481691 in words is "fifty billion, three million, four hundred eighty-one thousand, six hundred ninety-one".