50158251618 has 32 divisors (see below), whose sum is σ = 102433216896. Its totient is φ = 16368014208.

The previous prime is 50158251617. The next prime is 50158251643. The reversal of 50158251618 is 81615285105.

It is a self number, because there is not a number n which added to its sum of digits gives 50158251618.

It is not an unprimeable number, because it can be changed into a prime (50158251617) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27246 + ... + 317897.

It is an arithmetic number, because the mean of its divisors is an integer number (3201038028).

Almost surely, 2^50158251618 is an apocalyptic number.

50158251618 is an abundant number, since it is smaller than the sum of its proper divisors (52274965278).

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

50158251618 is a wasteful number, since it uses less digits than its factorization.

50158251618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345658.

The product of its (nonzero) digits is 96000, while the sum is 42.

The spelling of 50158251618 in words is "fifty billion, one hundred fifty-eight million, two hundred fifty-one thousand, six hundred eighteen".