50915189427 has 4 divisors (see below), whose sum is σ = 67886919240. Its totient is φ = 33943459616.

The previous prime is 50915189417. The next prime is 50915189443. The reversal of 50915189427 is 72498151905.

50915189427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 50915189427 - 2¹⁰ = 50915188403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50915189427.

It is not an unprimeable number, because it can be changed into a prime (50915189407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8485864902 + ... + 8485864907.

It is an arithmetic number, because the mean of its divisors is an integer number (16971729810).

Almost surely, 2^50915189427 is an apocalyptic number.

50915189427 is a deficient number, since it is larger than the sum of its proper divisors (16971729813).

50915189427 is a wasteful number, since it uses less digits than its factorization.

50915189427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16971729812.

The product of its (nonzero) digits is 907200, while the sum is 51.

The spelling of 50915189427 in words is "fifty billion, nine hundred fifteen million, one hundred eighty-nine thousand, four hundred twenty-seven".