50128807958 has 4 divisors (see below), whose sum is σ = 75193211940. Its totient is φ = 25064403978.

The previous prime is 50128807943. The next prime is 50128807969. The reversal of 50128807958 is 85970882105.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12532201988 + ... + 12532201991.

It is an arithmetic number, because the mean of its divisors is an integer number (18798302985).

Almost surely, 2^50128807958 is an apocalyptic number.

50128807958 is a deficient number, since it is larger than the sum of its proper divisors (25064403982).

50128807958 is a wasteful number, since it uses less digits than its factorization.

50128807958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25064403981.

The product of its (nonzero) digits is 1612800, while the sum is 53.

The spelling of 50128807958 in words is "fifty billion, one hundred twenty-eight million, eight hundred seven thousand, nine hundred fifty-eight".