50231421618 has 32 divisors (see below), whose sum is σ = 116387488896. Its totient is φ = 14155233408.

The previous prime is 50231421601. The next prime is 50231421629. The reversal of 50231421618 is 81612413205.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 8188621 + ... + 8194752.

It is an arithmetic number, because the mean of its divisors is an integer number (3637109028).

Almost surely, 2^50231421618 is an apocalyptic number.

50231421618 is an abundant number, since it is smaller than the sum of its proper divisors (66156067278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50231421618 is a wasteful number, since it uses less digits than its factorization.

50231421618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16383458.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 50231421618 in words is "fifty billion, two hundred thirty-one million, four hundred twenty-one thousand, six hundred eighteen".