50019163858 has 8 divisors (see below), whose sum is σ = 75031131852. Its totient is φ = 25008786576.

The previous prime is 50019163829. The next prime is 50019163889. The reversal of 50019163858 is 85836191005.

It can be written as a sum of positive squares in 2 ways, for example, as 31525067809 + 18494096049 = 177553^2 + 135993^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 315685 + ... + 446872.

Almost surely, 2^50019163858 is an apocalyptic number.

50019163858 is a deficient number, since it is larger than the sum of its proper divisors (25011967994).

50019163858 is a wasteful number, since it uses less digits than its factorization.

50019163858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795356.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 50019163858 in words is "fifty billion, nineteen million, one hundred sixty-three thousand, eight hundred fifty-eight".