50942415891 has 16 divisors (see below), whose sum is σ = 68026362624. Its totient is φ = 33910078944.

The previous prime is 50942415871. The next prime is 50942415907. The reversal of 50942415891 is 19851424905.

It is not a de Polignac number, because 50942415891 - 2⁵ = 50942415859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50942415891.

It is not an unprimeable number, because it can be changed into a prime (50942415871) 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, 8679940 + ... + 8685806.

It is an arithmetic number, because the mean of its divisors is an integer number (4251647664).

Almost surely, 2^50942415891 is an apocalyptic number.

50942415891 is a deficient number, since it is larger than the sum of its proper divisors (17083946733).

50942415891 is a wasteful number, since it uses less digits than its factorization.

50942415891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 50942415891 in words is "fifty billion, nine hundred forty-two million, four hundred fifteen thousand, eight hundred ninety-one".